diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs
index 1dcfb6c3..5f94d889 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs
@@ -98,6 +98,11 @@ namespace YooAsset
         /// 自定义参数：原生文件构建管线
         /// </summary>
         public bool RawFileBuildPipeline { private set; get; } = false;
+
+        /// <summary>
+        ///  自定义参数：解密方法类
+        /// </summary>
+        public IDecryptionServices DecryptionServices { private set; get; }
         #endregion
 
 
@@ -181,18 +186,22 @@ namespace YooAsset
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == "FILE_VERIFY_LEVEL")
+            if (name == FileSystemParameters.FILE_VERIFY_LEVEL)
             {
                 FileVerifyLevel = (EFileVerifyLevel)value;
             }
-            else if (name == "APPEND_FILE_EXTENSION")
+            else if (name == FileSystemParameters.APPEND_FILE_EXTENSION)
             {
                 AppendFileExtension = (bool)value;
             }
-            else if (name == "RAW_FILE_BUILD_PIPELINE")
+            else if (name == FileSystemParameters.RAW_FILE_BUILD_PIPELINE)
             {
                 RawFileBuildPipeline = (bool)value;
             }
+            else if (name == FileSystemParameters.DECRYPTION_SERVICES)
+            {
+                DecryptionServices = (IDecryptionServices)value;
+            }
             else
             {
                 YooLogger.Warning($"Invalid parameter : {name}");
@@ -210,10 +219,10 @@ namespace YooAsset
             // 创建解压文件系统
             var remoteServices = new UnpackRemoteServices(_packageRoot);
             _unpackFileSystem = new DefaultUnpackFileSystem();
-            _unpackFileSystem.SetParameter("REMOTE_SERVICES", remoteServices);
-            _unpackFileSystem.SetParameter("FILE_VERIFY_LEVEL", FileVerifyLevel);
-            _unpackFileSystem.SetParameter("APPEND_FILE_EXTENSION", AppendFileExtension);
-            _unpackFileSystem.SetParameter("RAW_FILE_BUILD_PIPELINE", RawFileBuildPipeline);
+            _unpackFileSystem.SetParameter(FileSystemParameters.REMOTE_SERVICES, remoteServices);
+            _unpackFileSystem.SetParameter(FileSystemParameters.FILE_VERIFY_LEVEL, FileVerifyLevel);
+            _unpackFileSystem.SetParameter(FileSystemParameters.APPEND_FILE_EXTENSION, AppendFileExtension);
+            _unpackFileSystem.SetParameter(FileSystemParameters.RAW_FILE_BUILD_PIPELINE, RawFileBuildPipeline);
             _unpackFileSystem.OnCreate(packageName, null);
         }
         public virtual void OnUpdate()
@@ -310,7 +319,60 @@ namespace YooAsset
             string rootPath = PathUtility.Combine(Application.dataPath, "StreamingAssets", YooAssetSettingsData.Setting.DefaultYooFolderName);
             return PathUtility.Combine(rootPath, PackageName);
         }
-        
+        public AssetBundle LoadAssetBundle(PackageBundle bundle)
+        {
+            string filePath = GetBuildinFileLoadPath(bundle);
+
+            if (bundle.Encrypted)
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"DecryptionServices is Null!");
+                    return null;
+                }
+                else
+                {
+                    return DecryptionServices.LoadAssetBundle(new DecryptFileInfo()
+                    {
+                        BundleName = bundle.BundleName,
+                        FileLoadCRC = bundle.UnityCRC,
+                        FileLoadPath = filePath,
+                    }, out _);
+                }
+            }
+            else
+            {
+                return AssetBundle.LoadFromFile(filePath);
+            }
+        }
+
+        public AssetBundleCreateRequest LoadAssetBundleAsync(PackageBundle bundle)
+        {
+            string filePath = GetBuildinFileLoadPath(bundle);
+
+            if (bundle.Encrypted)
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"DecryptionServices is Empty!");
+                    return null;
+                }
+                else
+                {
+                    return DecryptionServices.LoadAssetBundleAsync(new DecryptFileInfo()
+                    {
+                        BundleName = bundle.BundleName,
+                        FileLoadCRC = bundle.UnityCRC,
+                        FileLoadPath = filePath,
+                    }, out _);
+                }
+            }
+            else
+            {
+                return AssetBundle.LoadFromFileAsync(filePath);
+            }
+        }
+
         /// <summary>
         /// 记录文件信息
         /// </summary>
diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs
index 498e18a7..2276f968 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs
@@ -41,14 +41,13 @@ namespace YooAsset
 
             if (_steps == ESteps.LoadBuidlinAssetBundle)
             {
-                string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
                 if (_isWaitForAsyncComplete)
                 {
-                    Result = AssetBundle.LoadFromFile(filePath);
+                    Result = _fileSystem.LoadAssetBundle(_bundle); 
                 }
                 else
                 {
-                    _createRequest = AssetBundle.LoadFromFileAsync(filePath);
+                    _createRequest = _fileSystem.LoadAssetBundleAsync(_bundle);
                 }
                 _steps = ESteps.CheckLoadBuildinResult;
             }
diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs
index b084dfa0..08d3984d 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs
@@ -97,6 +97,11 @@ namespace YooAsset
         /// 自定义参数：断点续传下载器关注的错误码
         /// </summary>
         public List<long> ResumeDownloadResponseCodes { private set; get; } = null;
+
+        /// <summary>
+        ///  自定义参数：解密方法类
+        /// </summary>
+        public IDecryptionServices DecryptionServices { private set; get; }
         #endregion
 
 
@@ -208,30 +213,34 @@ namespace YooAsset
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == "REMOTE_SERVICES")
+            if (name == FileSystemParameters.REMOTE_SERVICES)
             {
                 RemoteServices = (IRemoteServices)value;
             }
-            else if (name == "FILE_VERIFY_LEVEL")
+            else if (name == FileSystemParameters.FILE_VERIFY_LEVEL)
             {
                 FileVerifyLevel = (EFileVerifyLevel)value;
             }
-            else if (name == "APPEND_FILE_EXTENSION")
+            else if (name == FileSystemParameters.APPEND_FILE_EXTENSION)
             {
                 AppendFileExtension = (bool)value;
             }
-            else if (name == "RAW_FILE_BUILD_PIPELINE")
+            else if (name == FileSystemParameters.RAW_FILE_BUILD_PIPELINE)
             {
                 RawFileBuildPipeline = (bool)value;
             }
-            else if (name == "RESUME_DOWNLOAD_MINMUM_SIZE")
+            else if (name == FileSystemParameters.RESUME_DOWNLOAD_MINMUM_SIZE)
             {
                 ResumeDownloadMinimumSize = (long)value;
             }
-            else if (name == "RESUME_DOWNLOAD_RESPONSE_CODES")
+            else if (name == FileSystemParameters.RESUME_DOWNLOAD_RESPONSE_CODES)
             {
                 ResumeDownloadResponseCodes = (List<long>)value;
             }
+            else if (name == FileSystemParameters.DECRYPTION_SERVICES)
+            {
+                DecryptionServices = (IDecryptionServices)value;
+            }
             else
             {
                 YooLogger.Warning($"Invalid parameter : {name}");
@@ -528,6 +537,60 @@ namespace YooAsset
         {
             return _wrappers.Keys.ToList();
         }
+
+        internal AssetBundle LoadAssetBundle(PackageBundle bundle)
+        {
+            string filePath = GetCacheFileLoadPath(bundle);
+
+            if (bundle.Encrypted)
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"DecryptionServices is Null!");
+                    return null;
+                }
+                else
+                {
+                    return DecryptionServices.LoadAssetBundle(new DecryptFileInfo()
+                    {
+                        BundleName = bundle.BundleName,
+                        FileLoadCRC = bundle.UnityCRC,
+                        FileLoadPath = filePath,
+                    }, out _);
+                }
+            }
+            else
+            {
+                return AssetBundle.LoadFromFile(filePath);
+            }
+        }
+
+        internal AssetBundleCreateRequest LoadAssetBundleAsync(PackageBundle bundle)
+        {
+            string filePath = GetCacheFileLoadPath(bundle);
+
+            if (bundle.Encrypted)
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"DecryptionServices is Empty!");
+                    return null;
+                }
+                else
+                {
+                    return DecryptionServices.LoadAssetBundleAsync(new DecryptFileInfo()
+                    {
+                        BundleName = bundle.BundleName,
+                        FileLoadCRC = bundle.UnityCRC,
+                        FileLoadPath = filePath,
+                    }, out _);
+                }
+            }
+            else
+            {
+                return AssetBundle.LoadFromFileAsync(filePath);
+            }
+        }
         #endregion
     }
 }
\ No newline at end of file
diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
index 0f4238df..6b610104 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
@@ -78,15 +78,15 @@ namespace YooAsset
 
             if (_steps == ESteps.LoadAssetBundle)
             {
-                string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
                 if (_isWaitForAsyncComplete)
                 {
-                    Result = AssetBundle.LoadFromFile(filePath);
+                    Result = _fileSystem.LoadAssetBundle(_bundle);
                 }
                 else
                 {
-                    _createRequest = AssetBundle.LoadFromFileAsync(filePath);
+                    _createRequest = _fileSystem.LoadAssetBundleAsync(_bundle);
                 }
+
                 _steps = ESteps.CheckResult;
             }
 
diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/DefaultWebFileSystem.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/DefaultWebFileSystem.cs
index 684984ac..eedbf667 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/DefaultWebFileSystem.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/DefaultWebFileSystem.cs
@@ -114,7 +114,7 @@ namespace YooAsset
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == "DISABLE_UNITY_WEB_CACHE")
+            if (name == FileSystemParameters.DISABLE_UNITY_WEB_CACHE)
             {
                 DisableUnityWebCache = (bool)value;
             }
diff --git a/Assets/YooAsset/Runtime/InitializeParameters.cs b/Assets/YooAsset/Runtime/InitializeParameters.cs
index 25076f7c..4fed4364 100644
--- a/Assets/YooAsset/Runtime/InitializeParameters.cs
+++ b/Assets/YooAsset/Runtime/InitializeParameters.cs
@@ -55,6 +55,15 @@ namespace YooAsset
     /// </summary>
     public class FileSystemParameters
     {
+        public const string FILE_VERIFY_LEVEL = "FILE_VERIFY_LEVEL";
+        public const string DECRYPTION_SERVICES = "DECRYPTION_SERVICES";
+        public const string APPEND_FILE_EXTENSION = "APPEND_FILE_EXTENSION";
+        public const string RAW_FILE_BUILD_PIPELINE = "RAW_FILE_BUILD_PIPELINE";
+        public const string REMOTE_SERVICES = "REMOTE_SERVICES";
+        public const string DISABLE_UNITY_WEB_CACHE = "DISABLE_UNITY_WEB_CACHE";
+        public const string RESUME_DOWNLOAD_MINMUM_SIZE = "RESUME_DOWNLOAD_MINMUM_SIZE";
+        public const string RESUME_DOWNLOAD_RESPONSE_CODES = "RESUME_DOWNLOAD_RESPONSE_CODES";
+
         internal Dictionary<string, object> CreateParameters = new Dictionary<string, object>();
 
         /// <summary>
@@ -101,11 +110,12 @@ namespace YooAsset
         /// </summary>
         /// <param name="verifyLevel">缓存文件的校验等级</param>
         /// <param name="rootDirectory">内置文件的根路径</param>
-        public static FileSystemParameters CreateDefaultBuildinFileSystemParameters(EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
+        public static FileSystemParameters CreateDefaultBuildinFileSystemParameters(IDecryptionServices decryptionServices = null, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
         {
             string fileSystemClass = typeof(DefaultBuildinFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
+            fileSystemParams.AddParameter(FILE_VERIFY_LEVEL, verifyLevel);
+            fileSystemParams.AddParameter(DECRYPTION_SERVICES, decryptionServices);
             return fileSystemParams;
         }
 
@@ -118,9 +128,9 @@ namespace YooAsset
         {
             string fileSystemClass = typeof(DefaultBuildinFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
-            fileSystemParams.AddParameter("APPEND_FILE_EXTENSION", true);
-            fileSystemParams.AddParameter("RAW_FILE_BUILD_PIPELINE", true);
+            fileSystemParams.AddParameter(FILE_VERIFY_LEVEL, verifyLevel);
+            fileSystemParams.AddParameter(APPEND_FILE_EXTENSION, true);
+            fileSystemParams.AddParameter(RAW_FILE_BUILD_PIPELINE, true);
             return fileSystemParams;
         }
 
@@ -130,12 +140,13 @@ namespace YooAsset
         /// <param name="remoteServices">远端资源地址查询服务类</param>
         /// <param name="verifyLevel">缓存文件的校验等级</param>
         /// <param name="rootDirectory">文件系统的根目录</param>
-        public static FileSystemParameters CreateDefaultCacheFileSystemParameters(IRemoteServices remoteServices, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
+        public static FileSystemParameters CreateDefaultCacheFileSystemParameters(IRemoteServices remoteServices, IDecryptionServices decryptionServices = null, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
         {
             string fileSystemClass = typeof(DefaultCacheFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("REMOTE_SERVICES", remoteServices);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
+            fileSystemParams.AddParameter(REMOTE_SERVICES, remoteServices);
+            fileSystemParams.AddParameter(FILE_VERIFY_LEVEL, verifyLevel);
+            fileSystemParams.AddParameter(DECRYPTION_SERVICES, decryptionServices);
             return fileSystemParams;
         }
 
@@ -149,10 +160,10 @@ namespace YooAsset
         {
             string fileSystemClass = typeof(DefaultCacheFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("REMOTE_SERVICES", remoteServices);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
-            fileSystemParams.AddParameter("APPEND_FILE_EXTENSION", true);
-            fileSystemParams.AddParameter("RAW_FILE_BUILD_PIPELINE", true);
+            fileSystemParams.AddParameter(REMOTE_SERVICES, remoteServices);
+            fileSystemParams.AddParameter(FILE_VERIFY_LEVEL, verifyLevel);
+            fileSystemParams.AddParameter(APPEND_FILE_EXTENSION, true);
+            fileSystemParams.AddParameter(RAW_FILE_BUILD_PIPELINE, true);
             return fileSystemParams;
         }
 
@@ -164,7 +175,7 @@ namespace YooAsset
         {
             string fileSystemClass = typeof(DefaultWebFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, null);
-            fileSystemParams.AddParameter("DISABLE_UNITY_WEB_CACHE", disableUnityWebCache);
+            fileSystemParams.AddParameter(DISABLE_UNITY_WEB_CACHE, disableUnityWebCache);
             return fileSystemParams;
         }
     }