diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSDownloadFileOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSDownloadFileOperation.cs
index d79c8903..9bd24597 100644
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSDownloadFileOperation.cs	
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSDownloadFileOperation.cs	
@@ -1,16 +1,30 @@
 #if UNITY_WEBGL && DOUYINMINIGAME
 using UnityEngine;
-using UnityEngine.Networking;
 using YooAsset;
 
-internal class TTFSDownloadFileOperation : DefaultDownloadFileOperation
+internal class TTFSDownloadFileOperation : FSDownloadFileOperation
 {
-    private TiktokFileSystem _fileSystem;
+    protected enum ESteps
+    {
+        None,
+        CreateRequest,
+        CheckRequest,
+        TryAgain,
+        Done,
+    }
+
+    private readonly TiktokFileSystem _fileSystem;
+    private readonly DownloadFileOptions _options;
+    private UnityWebCacheRequestOperation _unityWebCacheRequestOp;
+    private int _requestCount = 0;
+    private float _tryAgainTimer;
+    private int _failedTryAgain;
     private ESteps _steps = ESteps.None;
 
-    internal TTFSDownloadFileOperation(TiktokFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
+    internal TTFSDownloadFileOperation(TiktokFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle)
     {
         _fileSystem = fileSystem;
+        _options = options;
     }
     internal override void InternalStart()
     {
@@ -21,81 +35,75 @@ internal class TTFSDownloadFileOperation : DefaultDownloadFileOperation
         // 创建下载器
         if (_steps == ESteps.CreateRequest)
         {
-            // 获取请求地址
-            _requestURL = GetRequestURL();
-
-            // 重置变量
-            ResetRequestFiled();
-
-            // 创建下载器
-            CreateWebRequest();
-
+            string url = GetRequestURL();
+            _unityWebCacheRequestOp = new UnityWebCacheRequestOperation(url);
+            _unityWebCacheRequestOp.StartOperation();
             _steps = ESteps.CheckRequest;
         }
 
         // 检测下载结果
         if (_steps == ESteps.CheckRequest)
         {
-            DownloadProgress = _webRequest.downloadProgress;
-            DownloadedBytes = (long)_webRequest.downloadedBytes;
-            Progress = DownloadProgress;
-            if (_webRequest.isDone == false)
-            {
-                CheckRequestTimeout();
+            Progress = _unityWebCacheRequestOp.Progress;
+            DownloadProgress = _unityWebCacheRequestOp.DownloadProgress;
+            DownloadedBytes = (long)_unityWebCacheRequestOp.DownloadedBytes;
+            if (_unityWebCacheRequestOp.IsDone == false)
                 return;
-            }
 
-            // 检查网络错误
-            if (CheckRequestResult())
+            if (_unityWebCacheRequestOp.Status == EOperationStatus.Succeed)
             {
                 _steps = ESteps.Done;
                 Status = EOperationStatus.Succeed;
+
+                //TODO 需要验证抖音插件请求器的下载进度
+                DownloadProgress = 1f;
+                DownloadedBytes = Bundle.FileSize;
+                Progress = 1f;
             }
             else
             {
-                _steps = ESteps.TryAgain;
+                if (_failedTryAgain > 0)
+                {
+                    _steps = ESteps.TryAgain;
+                    YooLogger.Warning($"Failed download : {_unityWebCacheRequestOp.URL} Try again !");
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _unityWebCacheRequestOp.Error;
+                    YooLogger.Error(Error);
+                }
             }
-
-            // 注意：最终释放请求器
-            DisposeWebRequest();
         }
 
         // 重新尝试下载
         if (_steps == ESteps.TryAgain)
         {
-            if (FailedTryAgain <= 0)
-            {
-                Status = EOperationStatus.Failed;
-                _steps = ESteps.Done;
-                YooLogger.Error(Error);
-                return;
-            }
-
             _tryAgainTimer += Time.unscaledDeltaTime;
             if (_tryAgainTimer > 1f)
             {
-                FailedTryAgain--;
+                _tryAgainTimer = 0f;
+                _failedTryAgain--;
+                Progress = 0f;
+                DownloadProgress = 0f;
+                DownloadedBytes = 0;
                 _steps = ESteps.CreateRequest;
-                YooLogger.Warning(Error);
             }
         }
     }
 
-    private void CreateWebRequest()
+    /// <summary>
+    /// 获取网络请求地址
+    /// </summary>
+    private string GetRequestURL()
     {
-        //TODO : 抖音小游戏没有找到预下载方法
-        _webRequest = UnityWebRequest.Get(_requestURL);
-        _webRequest.disposeDownloadHandlerOnDispose = true;
-        _webRequest.SendWebRequest();
-    }
-    private void DisposeWebRequest()
-    {
-        if (_webRequest != null)
-        {
-            //注意：引擎底层会自动调用Abort方法
-            _webRequest.Dispose();
-            _webRequest = null;
-        }
+        // 轮流返回请求地址
+        _requestCount++;
+        if (_requestCount % 2 == 0)
+            return _options.FallbackURL;
+        else
+            return _options.MainURL;
     }
 }
 #endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSLoadBundleOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSLoadBundleOperation.cs
index a9bab7f9..16d7b868 100644
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSLoadBundleOperation.cs	
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/TTFSLoadBundleOperation.cs	
@@ -1,6 +1,5 @@
 #if UNITY_WEBGL && DOUYINMINIGAME
 using UnityEngine;
-using UnityEngine.Networking;
 using YooAsset;
 
 internal class TTFSLoadBundleOperation : FSLoadBundleOperation
@@ -14,7 +13,7 @@ internal class TTFSLoadBundleOperation : FSLoadBundleOperation
 
     private readonly TiktokFileSystem _fileSystem;
     private readonly PackageBundle _bundle;
-    private DownloadAssetBundleOperation _downloadAssetBundleOp;
+    private LoadWebAssetBundleOperation _loadWebAssetBundleOp;
     private ESteps _steps = ESteps.None;
 
     internal TTFSLoadBundleOperation(TiktokFileSystem fileSystem, PackageBundle bundle)
@@ -33,54 +32,46 @@ internal class TTFSLoadBundleOperation : FSLoadBundleOperation
 
         if (_steps == ESteps.DownloadAssetBundle)
         {
-            if (_downloadAssetBundleOp == null)
+            if (_loadWebAssetBundleOp == null)
             {
-                DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
-                options.MainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName); ;
-                options.FallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+                string mainRUL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName);
+                string fallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+                DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
+                options.SetURL(mainRUL, fallbackURL);
 
                 if (_bundle.Encrypted)
                 {
-                    _downloadAssetBundleOp = new DownloadEncryptAssetBundleOperation(false, _fileSystem.DecryptionServices, _bundle, options);
-                    _downloadAssetBundleOp.StartOperation();
-                    AddChildOperation(_downloadAssetBundleOp);
+                    _loadWebAssetBundleOp = new LoadWebEncryptAssetBundleOperation(_bundle, options, _fileSystem.DecryptionServices);
+                    _loadWebAssetBundleOp.StartOperation();
+                    AddChildOperation(_loadWebAssetBundleOp);
                 }
                 else
                 {
-                    _downloadAssetBundleOp = new DownloadTiktokAssetBundleOperation(_bundle, options);
-                    _downloadAssetBundleOp.StartOperation();
-                    AddChildOperation(_downloadAssetBundleOp);
+                    _loadWebAssetBundleOp = new LoadTiktokAssetBundleOperation(_bundle, options);
+                    _loadWebAssetBundleOp.StartOperation();
+                    AddChildOperation(_loadWebAssetBundleOp);
                 }
             }
 
-            _downloadAssetBundleOp.UpdateOperation();
-            DownloadProgress = _downloadAssetBundleOp.DownloadProgress;
-            DownloadedBytes = (long)_downloadAssetBundleOp.DownloadedBytes;
+            _loadWebAssetBundleOp.UpdateOperation();
+            DownloadProgress = _loadWebAssetBundleOp.DownloadProgress;
+            DownloadedBytes = (long)_loadWebAssetBundleOp.DownloadedBytes;
             Progress = DownloadProgress;
-            if (_downloadAssetBundleOp.IsDone == false)
+            if (_loadWebAssetBundleOp.IsDone == false)
                 return;
 
-            if (_downloadAssetBundleOp.Status == EOperationStatus.Succeed)
+            if (_loadWebAssetBundleOp.Status == EOperationStatus.Succeed)
             {
-                var assetBundle = _downloadAssetBundleOp.Result;
-                if (assetBundle == null)
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = $"{nameof(DownloadAssetBundleOperation)} loaded asset bundle is null !";
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Result = new TTAssetBundleResult(_fileSystem, _bundle, assetBundle);
-                    Status = EOperationStatus.Succeed;
-                }
+                var assetBundle = _loadWebAssetBundleOp.Result;
+                _steps = ESteps.Done;
+                Result = new TTAssetBundleResult(_fileSystem, _bundle, assetBundle);
+                Status = EOperationStatus.Succeed;
             }
             else
             {
                 _steps = ESteps.Done;
                 Status = EOperationStatus.Failed;
-                Error = _downloadAssetBundleOp.Error;
+                Error = _loadWebAssetBundleOp.Error;
             }
         }
     }
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/DownloadTiktokAssetBundleOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/DownloadTiktokAssetBundleOperation.cs
deleted file mode 100644
index d3f23268..00000000
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/DownloadTiktokAssetBundleOperation.cs	
+++ /dev/null
@@ -1,126 +0,0 @@
-#if UNITY_WEBGL && DOUYINMINIGAME
-using UnityEngine;
-using TTSDK;
-
-namespace YooAsset
-{
-    internal class DownloadTiktokAssetBundleOperation : DownloadAssetBundleOperation
-    {
-        private ESteps _steps = ESteps.None;
-        
-        internal DownloadTiktokAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
-        {
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.CreateRequest;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            // 创建下载器
-            if (_steps == ESteps.CreateRequest)
-            {
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置变量
-                ResetRequestFiled();
-
-                // 创建下载器
-                CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
-            }
-
-            // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = DownloadProgress;
-                if (_webRequest.isDone == false)
-                {
-                    //TODO 需要验证抖音插件请求器的下载进度
-                    //CheckRequestTimeout();
-                    return;
-                }
-
-                // 检查网络错误
-                if (CheckRequestResult())
-                {
-                    var downloadHanlder = (DownloadHandlerTTAssetBundle)_webRequest.downloadHandler;
-                    AssetBundle assetBundle = downloadHanlder.assetBundle;
-                    if (assetBundle == null)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = "Download handler asset bundle object is null !";
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Result = assetBundle;
-                        Status = EOperationStatus.Succeed;
-
-                        //TODO 需要验证抖音插件请求器的下载进度
-                        DownloadProgress = 1f;
-                        DownloadedBytes = Bundle.FileSize;
-                        Progress = 1f;
-                    }
-                }
-                else
-                {
-                    _steps = ESteps.TryAgain;
-                }
-
-                // 注意：最终释放请求器
-                DisposeWebRequest();
-            }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
-        }
-        
-        private void CreateWebRequest()
-        {
-            _webRequest = TTAssetBundle.GetAssetBundle(_requestURL);
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
-    }
-}
-#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/LoadTiktokAssetBundleOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/LoadTiktokAssetBundleOperation.cs
new file mode 100644
index 00000000..ed128d84
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/LoadTiktokAssetBundleOperation.cs	
@@ -0,0 +1,114 @@
+#if UNITY_WEBGL && DOUYINMINIGAME
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class LoadTiktokAssetBundleOperation : LoadWebAssetBundleOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            CheckRequest,
+            TryAgain,
+            Done,
+        }
+
+        private readonly PackageBundle _bundle;
+        private readonly DownloadFileOptions _options;
+        private UnityTiktokAssetBundleRequestOperation _unityTiktokAssetBundleRequestOp;
+
+        private int _requestCount = 0;
+        private float _tryAgainTimer;
+        private int _failedTryAgain;
+        private ESteps _steps = ESteps.None;
+
+
+        internal LoadTiktokAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options)
+        {
+            _bundle = bundle;
+            _options = options;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                string url = GetRequestURL();
+                _unityTiktokAssetBundleRequestOp = new UnityTiktokAssetBundleRequestOperation(_bundle, url);
+                _unityTiktokAssetBundleRequestOp.StartOperation();
+                AddChildOperation(_unityTiktokAssetBundleRequestOp);
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                _unityTiktokAssetBundleRequestOp.UpdateOperation();
+                Progress = _unityTiktokAssetBundleRequestOp.Progress;
+                DownloadProgress = _unityTiktokAssetBundleRequestOp.DownloadProgress;
+                DownloadedBytes = (long)_unityTiktokAssetBundleRequestOp.DownloadedBytes;
+                if (_unityTiktokAssetBundleRequestOp.IsDone == false)
+                    return;
+
+                if (_unityTiktokAssetBundleRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                    Result = _unityTiktokAssetBundleRequestOp.Result;
+                }
+                else
+                {
+                    if (_failedTryAgain > 0)
+                    {
+                        _steps = ESteps.TryAgain;
+                        YooLogger.Warning($"Failed download : {_unityTiktokAssetBundleRequestOp.URL} Try again !");
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = _unityTiktokAssetBundleRequestOp.Error;
+                        YooLogger.Error(Error);
+                    }
+                }
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    _tryAgainTimer = 0f;
+                    _failedTryAgain--;
+                    Progress = 0f;
+                    DownloadProgress = 0f;
+                    DownloadedBytes = 0;
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 获取网络请求地址
+        /// </summary>
+        private string GetRequestURL()
+        {
+            // 轮流返回请求地址
+            _requestCount++;
+            if (_requestCount % 2 == 0)
+                return _options.FallbackURL;
+            else
+                return _options.MainURL;
+        }
+    }
+}
+#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/DownloadTiktokAssetBundleOperation.cs.meta b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/LoadTiktokAssetBundleOperation.cs.meta
similarity index 100%
rename from Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/DownloadTiktokAssetBundleOperation.cs.meta
rename to Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/LoadTiktokAssetBundleOperation.cs.meta
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/UnityTiktokAssetBundleRequestOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/UnityTiktokAssetBundleRequestOperation.cs
new file mode 100644
index 00000000..4ee8807f
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/UnityTiktokAssetBundleRequestOperation.cs	
@@ -0,0 +1,95 @@
+#if UNITY_WEBGL && DOUYINMINIGAME
+using UnityEngine.Networking;
+using UnityEngine;
+using TTSDK;
+
+namespace YooAsset
+{
+    internal class UnityTiktokAssetBundleRequestOperation : UnityWebRequestOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
+        private readonly PackageBundle _packageBundle;
+        private UnityWebRequestAsyncOperation _requestOperation;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 请求结果
+        /// </summary>
+        public AssetBundle Result { private set; get; }
+
+        internal UnityTiktokAssetBundleRequestOperation(PackageBundle bundle, string url) : base(url)
+        {
+            _packageBundle = bundle;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.CreateRequest)
+            {
+                CreateWebRequest();
+                _steps = ESteps.Download;
+            }
+
+            if (_steps == ESteps.Download)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = _requestOperation.progress;
+                if (_requestOperation.isDone == false)
+                    return;
+
+                if (CheckRequestResult())
+                {
+                    var downloadHanlder = (DownloadHandlerTTAssetBundle)_webRequest.downloadHandler;
+                    AssetBundle assetBundle = downloadHanlder.assetBundle;
+                    if (assetBundle == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"URL : {_requestURL} Download handler asset bundle object is null !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Result = assetBundle;
+                        Status = EOperationStatus.Succeed;
+
+                        //TODO 需要验证抖音插件请求器的下载进度
+                        DownloadProgress = 1f;
+                        DownloadedBytes = _packageBundle.FileSize;
+                        Progress = 1f;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
+
+                // 注意：最终释放请求器
+                DisposeRequest();
+            }
+        }
+
+        private void CreateWebRequest()
+        {
+            _webRequest = TTAssetBundle.GetAssetBundle(_requestURL);
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            _requestOperation = _webRequest.SendWebRequest();
+        }
+    }
+}
+#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/UnityTiktokAssetBundleRequestOperation.cs.meta b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/UnityTiktokAssetBundleRequestOperation.cs.meta
new file mode 100644
index 00000000..c56f19c5
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/Operation/internal/UnityTiktokAssetBundleRequestOperation.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: dbac28b7a131d1043af35b3c2dbe083f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/TiktokFileSystem.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/TiktokFileSystem.cs
index f7835376..f2bdc2a1 100644
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/TiktokFileSystem.cs	
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/TiktokFileSystem/TiktokFileSystem.cs	
@@ -136,8 +136,9 @@ internal class TiktokFileSystem : IFileSystem
     }
     public virtual FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadFileOptions options)
     {
-        options.MainURL = RemoteServices.GetRemoteMainURL(bundle.FileName);
-        options.FallbackURL = RemoteServices.GetRemoteFallbackURL(bundle.FileName);
+        string mainURL = RemoteServices.GetRemoteMainURL(bundle.FileName);
+        string fallbackURL = RemoteServices.GetRemoteFallbackURL(bundle.FileName);
+        options.SetURL(mainURL, fallbackURL);
         var operation = new TTFSDownloadFileOperation(this, bundle, options);
         return operation;
     }
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs
index c9c8ede7..9827ad6d 100644
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs	
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs	
@@ -1,17 +1,30 @@
 #if UNITY_WEBGL && WEIXINMINIGAME
 using UnityEngine;
-using UnityEngine.Networking;
 using YooAsset;
-using WeChatWASM;
 
-internal class WXFSDownloadFileOperation : DefaultDownloadFileOperation
+internal class WXFSDownloadFileOperation : FSDownloadFileOperation
 {
-    private WechatFileSystem _fileSystem;
+    protected enum ESteps
+    {
+        None,
+        CreateRequest,
+        CheckRequest,
+        TryAgain,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly DownloadFileOptions _options;
+    private UnityWebCacheRequestOperation _unityWebCacheRequestOp;
+    private int _requestCount = 0;
+    private float _tryAgainTimer;
+    private int _failedTryAgain;
     private ESteps _steps = ESteps.None;
 
-    internal WXFSDownloadFileOperation(WechatFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
+    internal WXFSDownloadFileOperation(WechatFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle)
     {
         _fileSystem = fileSystem;
+        _options = options;
     }
     internal override void InternalStart()
     {
@@ -22,34 +35,25 @@ internal class WXFSDownloadFileOperation : DefaultDownloadFileOperation
         // 创建下载器
         if (_steps == ESteps.CreateRequest)
         {
-            // 获取请求地址
-            _requestURL = GetRequestURL();
-
-            // 重置变量
-            ResetRequestFiled();
-
-            // 创建下载器
-            CreateWebRequest();
-
+            string url = GetRequestURL();
+            _unityWebCacheRequestOp = new UnityWebCacheRequestOperation(url);
+            _unityWebCacheRequestOp.SetRequestHeader("wechatminigame-preload", "1");
+            _unityWebCacheRequestOp.StartOperation();
+            AddChildOperation(_unityWebCacheRequestOp);
             _steps = ESteps.CheckRequest;
         }
 
         // 检测下载结果
         if (_steps == ESteps.CheckRequest)
         {
-            DownloadProgress = _webRequest.downloadProgress;
-            DownloadedBytes = (long)_webRequest.downloadedBytes;
-            Progress = DownloadProgress;
-            if (_webRequest.isDone == false)
-            {
-                //TODO 由于微信小游戏插件的问题，暂时不能判定超时！
-                // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
-                //CheckRequestTimeout();
+            _unityWebCacheRequestOp.UpdateOperation();
+            Progress = _unityWebCacheRequestOp.Progress;
+            DownloadProgress = _unityWebCacheRequestOp.DownloadProgress;
+            DownloadedBytes = (long)_unityWebCacheRequestOp.DownloadedBytes;
+            if (_unityWebCacheRequestOp.IsDone == false)
                 return;
-            }
 
-            // 检查网络错误
-            if (CheckRequestResult())
+            if (_unityWebCacheRequestOp.Status == EOperationStatus.Succeed)
             {
                 _steps = ESteps.Done;
                 Status = EOperationStatus.Succeed;
@@ -62,49 +66,48 @@ internal class WXFSDownloadFileOperation : DefaultDownloadFileOperation
             }
             else
             {
-                _steps = ESteps.TryAgain;
+                if (_failedTryAgain > 0)
+                {
+                    _steps = ESteps.TryAgain;
+                    YooLogger.Warning($"Failed download : {_unityWebCacheRequestOp.URL} Try again !");
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _unityWebCacheRequestOp.Error;
+                    YooLogger.Error(Error);
+                }
             }
-
-            // 注意：最终释放请求器
-            DisposeWebRequest();
         }
 
         // 重新尝试下载
         if (_steps == ESteps.TryAgain)
         {
-            if (FailedTryAgain <= 0)
-            {
-                Status = EOperationStatus.Failed;
-                _steps = ESteps.Done;
-                YooLogger.Error(Error);
-                return;
-            }
-
             _tryAgainTimer += Time.unscaledDeltaTime;
             if (_tryAgainTimer > 1f)
             {
-                FailedTryAgain--;
+                _tryAgainTimer = 0f;
+                _failedTryAgain--;
+                Progress = 0f;
+                DownloadProgress = 0f;
+                DownloadedBytes = 0;
                 _steps = ESteps.CreateRequest;
-                YooLogger.Warning(Error);
             }
         }
     }
 
-    private void CreateWebRequest()
+    /// <summary>
+    /// 获取网络请求地址
+    /// </summary>
+    private string GetRequestURL()
     {
-        _webRequest = UnityWebRequest.Get(_requestURL);
-        _webRequest.SetRequestHeader("wechatminigame-preload", "1");
-        _webRequest.disposeDownloadHandlerOnDispose = true;
-        _webRequest.SendWebRequest();
-    }
-    private void DisposeWebRequest()
-    {
-        if (_webRequest != null)
-        {
-            //注意：引擎底层会自动调用Abort方法
-            _webRequest.Dispose();
-            _webRequest = null;
-        }
+        // 轮流返回请求地址
+        _requestCount++;
+        if (_requestCount % 2 == 0)
+            return _options.FallbackURL;
+        else
+            return _options.MainURL;
     }
 }
 #endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs
index f2dacb73..f7e3a698 100644
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs	
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs	
@@ -12,9 +12,9 @@ internal class WXFSLoadBundleOperation : FSLoadBundleOperation
 
     private readonly WechatFileSystem _fileSystem;
     private readonly PackageBundle _bundle;
-    private DownloadAssetBundleOperation _downloadAssetBundleOp;
+    private LoadWebAssetBundleOperation _loadWebAssetBundleOp;
     private ESteps _steps = ESteps.None;
-    
+
     internal WXFSLoadBundleOperation(WechatFileSystem fileSystem, PackageBundle bundle)
     {
         _fileSystem = fileSystem;
@@ -31,54 +31,46 @@ internal class WXFSLoadBundleOperation : FSLoadBundleOperation
 
         if (_steps == ESteps.DownloadAssetBundle)
         {
-            if (_downloadAssetBundleOp == null)
+            if (_loadWebAssetBundleOp == null)
             {
-                DownloadFileOptions options = new DownloadFileOptions(int.MaxValue, 60);
-                options.MainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName); ;
-                options.FallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+                string mainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName);
+                string fallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+                DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
+                options.SetURL(mainURL, fallbackURL);
 
                 if (_bundle.Encrypted)
                 {
-                    _downloadAssetBundleOp = new DownloadEncryptAssetBundleOperation(false, _fileSystem.DecryptionServices, _bundle, options);
-                    _downloadAssetBundleOp.StartOperation();
-                    AddChildOperation(_downloadAssetBundleOp);
+                    _loadWebAssetBundleOp = new LoadWebEncryptAssetBundleOperation(_bundle, options, _fileSystem.DecryptionServices);
+                    _loadWebAssetBundleOp.StartOperation();
+                    AddChildOperation(_loadWebAssetBundleOp);
                 }
                 else
                 {
-                    _downloadAssetBundleOp = new DownloadWechatAssetBundleOperation(_bundle, options);
-                    _downloadAssetBundleOp.StartOperation();
-                    AddChildOperation(_downloadAssetBundleOp);
+                    _loadWebAssetBundleOp = new LoadWechatAssetBundleOperation(_bundle, options);
+                    _loadWebAssetBundleOp.StartOperation();
+                    AddChildOperation(_loadWebAssetBundleOp);
                 }
             }
 
-            _downloadAssetBundleOp.UpdateOperation();
-            DownloadProgress = _downloadAssetBundleOp.DownloadProgress;
-            DownloadedBytes = (long)_downloadAssetBundleOp.DownloadedBytes;
+            _loadWebAssetBundleOp.UpdateOperation();
+            DownloadProgress = _loadWebAssetBundleOp.DownloadProgress;
+            DownloadedBytes = (long)_loadWebAssetBundleOp.DownloadedBytes;
             Progress = DownloadProgress;
-            if (_downloadAssetBundleOp.IsDone == false)
+            if (_loadWebAssetBundleOp.IsDone == false)
                 return;
 
-            if (_downloadAssetBundleOp.Status == EOperationStatus.Succeed)
+            if (_loadWebAssetBundleOp.Status == EOperationStatus.Succeed)
             {
-                var assetBundle = _downloadAssetBundleOp.Result;
-                if (assetBundle == null)
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = $"{nameof(DownloadAssetBundleOperation)} loaded asset bundle is null !";
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Result = new WXAssetBundleResult(_fileSystem, _bundle, assetBundle);
-                    Status = EOperationStatus.Succeed;
-                }
+                var assetBundle = _loadWebAssetBundleOp.Result;
+                _steps = ESteps.Done;
+                Result = new WXAssetBundleResult(_fileSystem, _bundle, assetBundle);
+                Status = EOperationStatus.Succeed;
             }
             else
             {
                 _steps = ESteps.Done;
                 Status = EOperationStatus.Failed;
-                Error = _downloadAssetBundleOp.Error;
+                Error = _loadWebAssetBundleOp.Error;
             }
         }
     }
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs
deleted file mode 100644
index ae9393d2..00000000
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs	
+++ /dev/null
@@ -1,128 +0,0 @@
-#if UNITY_WEBGL && WEIXINMINIGAME
-using UnityEngine;
-using WeChatWASM;
-
-namespace YooAsset
-{
-    internal class DownloadWechatAssetBundleOperation : DownloadAssetBundleOperation
-    {
-        private ESteps _steps = ESteps.None;
-
-        internal DownloadWechatAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options) : base(bundle, options)
-        {
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.CreateRequest;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            // 创建下载器
-            if (_steps == ESteps.CreateRequest)
-            {
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置变量
-                ResetRequestFiled();
-
-                // 创建下载器
-                CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
-            }
-
-            // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = DownloadProgress;
-                if (_webRequest.isDone == false)
-                {
-                    //TODO 由于微信小游戏插件的问题，暂时不能判定超时！
-                    // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
-                    //CheckRequestTimeout();
-                    return;
-                }
-
-                // 检查网络错误
-                if (CheckRequestResult())
-                {
-                    var downloadHanlder = (DownloadHandlerWXAssetBundle)_webRequest.downloadHandler;
-                    AssetBundle assetBundle = downloadHanlder.assetBundle;
-                    if (assetBundle == null)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = "Download handler asset bundle object is null !";
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Result = assetBundle;
-                        Status = EOperationStatus.Succeed;
-
-                        //TODO 解决微信小游戏插件问题
-                        // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
-                        DownloadProgress = 1f;
-                        DownloadedBytes = Bundle.FileSize;
-                        Progress = 1f;
-                    }
-                }
-                else
-                {
-                    _steps = ESteps.TryAgain;
-                }
-
-                // 注意：最终释放请求器
-                DisposeWebRequest();
-            }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
-        }
-
-        private void CreateWebRequest()
-        {
-            _webRequest = WXAssetBundle.GetAssetBundle(_requestURL);
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
-    }
-}
-#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs
new file mode 100644
index 00000000..496fb031
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs	
@@ -0,0 +1,120 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class LoadWechatAssetBundleOperation : LoadWebAssetBundleOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            CheckRequest,
+            TryAgain,
+            Done,
+        }
+
+        private readonly PackageBundle _bundle;
+        private readonly DownloadFileOptions _options;
+        private UnityWechatAssetBundleRequestOperation _unityWechatAssetBundleRequestOp;
+
+        private int _requestCount = 0;
+        private float _tryAgainTimer;
+        private int _failedTryAgain;
+        private ESteps _steps = ESteps.None;
+
+
+        internal LoadWechatAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options)
+        {
+            _bundle = bundle;
+            _options = options;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                string url = GetRequestURL();
+                _unityWechatAssetBundleRequestOp = new UnityWechatAssetBundleRequestOperation(_bundle, url);
+                _unityWechatAssetBundleRequestOp.StartOperation();
+                AddChildOperation(_unityWechatAssetBundleRequestOp);
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                _unityWechatAssetBundleRequestOp.UpdateOperation();
+                Progress = _unityWechatAssetBundleRequestOp.Progress;
+                DownloadProgress = _unityWechatAssetBundleRequestOp.DownloadProgress;
+                DownloadedBytes = (long)_unityWechatAssetBundleRequestOp.DownloadedBytes;
+                if (_unityWechatAssetBundleRequestOp.IsDone == false)
+                    return;
+
+                if (_unityWechatAssetBundleRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                    Result = _unityWechatAssetBundleRequestOp.Result;
+                }
+                else
+                {
+                    if (_failedTryAgain > 0)
+                    {
+                        _steps = ESteps.TryAgain;
+                        YooLogger.Warning($"Failed download : {_unityWechatAssetBundleRequestOp.URL} Try again !");
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = _unityWechatAssetBundleRequestOp.Error;
+                        YooLogger.Error(Error);
+                    }
+                }
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    _tryAgainTimer = 0f;
+                    _failedTryAgain--;
+                    Progress = 0f;
+                    DownloadProgress = 0f;
+                    DownloadedBytes = 0;
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+        }
+        internal override void InternalAbort()
+        {
+            _steps = ESteps.Done;
+            if (_unityWechatAssetBundleRequestOp != null)
+                _unityWechatAssetBundleRequestOp.AbortOperation();
+        }
+
+        /// <summary>
+        /// 获取网络请求地址
+        /// </summary>
+        protected string GetRequestURL()
+        {
+            // 轮流返回请求地址
+            _requestCount++;
+            if (_requestCount % 2 == 0)
+                return _options.FallbackURL;
+            else
+                return _options.MainURL;
+        }
+    }
+}
+#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs.meta b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs.meta
similarity index 100%
rename from Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs.meta
rename to Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs.meta
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs
new file mode 100644
index 00000000..741970b7
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs	
@@ -0,0 +1,96 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine.Networking;
+using UnityEngine;
+using WeChatWASM;
+
+namespace YooAsset
+{
+    internal class UnityWechatAssetBundleRequestOperation : UnityWebRequestOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
+        private readonly PackageBundle _packageBundle;
+        private UnityWebRequestAsyncOperation _requestOperation;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 请求结果
+        /// </summary>
+        public AssetBundle Result { private set; get; }
+
+        internal UnityWechatAssetBundleRequestOperation(PackageBundle bundle, string url) : base(url)
+        {
+            _packageBundle = bundle;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.CreateRequest)
+            {
+                CreateWebRequest();
+                _steps = ESteps.Download;
+            }
+
+            if (_steps == ESteps.Download)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = _requestOperation.progress;
+                if (_requestOperation.isDone == false)
+                    return;
+
+                if (CheckRequestResult())
+                {
+                    var downloadHanlder = (DownloadHandlerWXAssetBundle)_webRequest.downloadHandler;
+                    AssetBundle assetBundle = downloadHanlder.assetBundle;
+                    if (assetBundle == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"URL : {_requestURL} Download handler asset bundle object is null !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Result = assetBundle;
+                        Status = EOperationStatus.Succeed;
+
+                        //TODO 解决微信小游戏插件问题
+                        // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
+                        DownloadProgress = 1f;
+                        DownloadedBytes = _packageBundle.FileSize;
+                        Progress = 1f;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
+
+                // 注意：最终释放请求器
+                DisposeRequest();
+            }
+        }
+
+        private void CreateWebRequest()
+        {
+            _webRequest = WXAssetBundle.GetAssetBundle(_requestURL);
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            _requestOperation = _webRequest.SendWebRequest();
+        }
+    }
+}
+#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs.meta b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs.meta
new file mode 100644
index 00000000..31fa9f28
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 8dd1f15e52120ad409285fa3e21c7d30
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/WechatFileSystem.cs b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/WechatFileSystem.cs
index fdc75684..b02886b8 100644
--- a/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/WechatFileSystem.cs	
+++ b/Assets/YooAsset/Samples~/Mini Game/Runtime/WechatFileSystem/WechatFileSystem.cs	
@@ -151,8 +151,9 @@ internal class WechatFileSystem : IFileSystem
     }
     public virtual FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadFileOptions options)
     {
-        options.MainURL = RemoteServices.GetRemoteMainURL(bundle.FileName);
-        options.FallbackURL = RemoteServices.GetRemoteFallbackURL(bundle.FileName);
+        string mainURL = RemoteServices.GetRemoteMainURL(bundle.FileName);
+        string fallbackURL = RemoteServices.GetRemoteFallbackURL(bundle.FileName);
+        options.SetURL(mainURL, fallbackURL);
         var operation = new WXFSDownloadFileOperation(this, bundle, options);
         return operation;
     }