diff --git a/Assets/YooAsset/Runtime/OperationSystem/AsyncOperationBase.cs b/Assets/YooAsset/Runtime/OperationSystem/AsyncOperationBase.cs
index 9111262e..74746461 100644
--- a/Assets/YooAsset/Runtime/OperationSystem/AsyncOperationBase.cs
+++ b/Assets/YooAsset/Runtime/OperationSystem/AsyncOperationBase.cs
@@ -9,7 +9,6 @@ namespace YooAsset
     public abstract class AsyncOperationBase : IEnumerator, IComparable<AsyncOperationBase>
     {
         private Action<AsyncOperationBase> _callback;
-        private string _packageName = null;
         private int _whileFrame = 1000;
 
         /// <summary>
@@ -47,17 +46,6 @@ namespace YooAsset
         /// </summary>
         public float Progress { get; protected set; }
 
-        /// <summary>
-        /// 所属包裹名称
-        /// </summary>
-        public string PackageName
-        {
-            get
-            {
-                return _packageName;
-            }
-        }
-
         /// <summary>
         /// 是否已经完成
         /// </summary>
@@ -76,10 +64,24 @@ namespace YooAsset
         {
             add
             {
+                if (value == null)
+                    return;
+
                 if (IsDone)
-                    value.Invoke(this);
+                {
+                    try
+                    {
+                        value.Invoke(this);
+                    }
+                    catch (Exception ex)
+                    {
+                        YooLogger.Error($"Exception in completion callback: {ex}");
+                    }
+                }
                 else
+                {
                     _callback += value;
+                }
             }
             remove
             {
@@ -118,14 +120,6 @@ namespace YooAsset
             return string.Empty;
         }
 
-        /// <summary>
-        /// 设置包裹名称
-        /// </summary>
-        internal void SetPackageName(string packageName)
-        {
-            _packageName = packageName;
-        }
-
         /// <summary>
         /// 添加子任务
         /// </summary>
@@ -194,8 +188,6 @@ namespace YooAsset
             if (IsDone && IsFinish == false)
             {
                 IsFinish = true;
-
-                // 进度百分百完成
                 Progress = 1f;
 
                 // 结束记录
@@ -229,10 +221,28 @@ namespace YooAsset
 
             if (IsDone == false)
             {
+                InternalAbort();
                 Status = EOperationStatus.Failed;
                 Error = "user abort";
                 YooLogger.Warning($"Async operaiton {this.GetType().Name} has been abort !");
-                InternalAbort();
+            }
+        }
+
+        /// <summary>
+        /// 结束异步任务
+        /// </summary>
+        internal void FinishOperation()
+        {
+            if (IsFinish == false)
+            {
+                IsFinish = true;
+                Progress = 1f;
+
+                // 结束记录
+                DebugEndRecording();
+
+                if (_taskCompletionSource != null)
+                    _taskCompletionSource.TrySetResult(null);
             }
         }
 
@@ -360,4 +370,4 @@ namespace YooAsset
         private TaskCompletionSource<object> _taskCompletionSource;
         #endregion
     }
-}
\ No newline at end of file
+}
diff --git a/Assets/YooAsset/Runtime/OperationSystem/OperationScheduler.cs b/Assets/YooAsset/Runtime/OperationSystem/OperationScheduler.cs
new file mode 100644
index 00000000..3eabac6f
--- /dev/null
+++ b/Assets/YooAsset/Runtime/OperationSystem/OperationScheduler.cs
@@ -0,0 +1,162 @@
+using System;
+using System.Collections.Generic;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 异步操作调度器
+    /// </summary>
+    internal class OperationScheduler : IComparable<OperationScheduler>
+    {
+        private readonly List<AsyncOperationBase> _operations = new List<AsyncOperationBase>(100);
+        private readonly List<AsyncOperationBase> _newList = new List<AsyncOperationBase>(100);
+
+        /// <summary>
+        /// 所属包裹名称
+        /// </summary>
+        public string PackageName { private set; get; }
+
+        /// <summary>
+        /// 调度器优先级（值越大越优先）
+        /// </summary>
+        public int Priority { private set; get; }
+
+        /// <summary>
+        /// 创建顺序（用于同优先级稳定排序）
+        /// </summary>
+        public int CreateIndex { private set; get; }
+
+
+        public OperationScheduler(string packageName, int priority, int createIndex)
+        {
+            PackageName = packageName;
+            Priority = priority;
+            CreateIndex = createIndex;
+        }
+
+        /// <summary>
+        /// 开始处理异步操作
+        /// </summary>
+        public void StartOperation(AsyncOperationBase operation)
+        {
+            _newList.Add(operation);
+            operation.StartOperation();
+
+            // 通知开始回调
+            OperationSystem.InvokeStartCallback(PackageName, operation);
+        }
+
+        /// <summary>
+        /// 更新调度器
+        /// </summary>
+        public void Update()
+        {
+            // 移除已经完成的异步操作
+            for (int i = _operations.Count - 1; i >= 0; i--)
+            {
+                var operation = _operations[i];
+                if (operation.IsFinish)
+                {
+                    _operations.RemoveAt(i);
+
+                    // 通知完成回调
+                    OperationSystem.InvokeFinishCallback(PackageName, operation);
+                }
+            }
+
+            // 添加新增的异步操作
+            if (_newList.Count > 0)
+            {
+                bool sorting = false;
+                foreach (var operation in _newList)
+                {
+                    if (operation.Priority > 0)
+                    {
+                        sorting = true;
+                        break;
+                    }
+                }
+
+                _operations.AddRange(_newList);
+                _newList.Clear();
+
+                // 重新排序优先级
+                if (sorting)
+                    _operations.Sort();
+            }
+
+            // 更新进行中的异步操作
+            for (int i = 0; i < _operations.Count; i++)
+            {
+                // 检查全局时间切片预算
+                if (OperationSystem.IsBusy)
+                    break;
+
+                var operation = _operations[i];
+                if (operation.IsFinish)
+                    continue;
+
+                operation.UpdateOperation();
+            }
+        }
+
+        /// <summary>
+        /// 清空并中止所有任务
+        /// </summary>
+        public void ClearAll()
+        {
+            // 终止临时队列里的任务
+            foreach (var operation in _newList)
+            {
+                operation.AbortOperation();
+            }
+            _newList.Clear();
+
+            // 终止正在进行的任务
+            foreach (var operation in _operations)
+            {
+                operation.AbortOperation();
+            }
+            _operations.Clear();
+        }
+
+        /// <summary>
+        /// 获取调试信息
+        /// </summary>
+        public List<DebugOperationInfo> GetDebugOperationInfos()
+        {
+            int totalCount = _operations.Count + _newList.Count;
+            List<DebugOperationInfo> result = new List<DebugOperationInfo>(totalCount);
+
+            // 包含正在执行的任务
+            foreach (var operation in _operations)
+            {
+                var operationInfo = OperationSystem.GetDebugOperationInfo(operation);
+                result.Add(operationInfo);
+            }
+
+            // 包含待处理的新任务
+            foreach (var operation in _newList)
+            {
+                var operationInfo = OperationSystem.GetDebugOperationInfo(operation);
+                result.Add(operationInfo);
+            }
+
+            return result;
+        }
+
+        #region 排序接口实现
+        public int CompareTo(OperationScheduler other)
+        {
+            // 优先级高的排前面
+            int result = other.Priority.CompareTo(this.Priority);
+            if (result == 0)
+            {
+                // 优先级相同，按创建顺序
+                result = this.CreateIndex.CompareTo(other.CreateIndex);
+            }
+            return result;
+        }
+        #endregion
+    }
+}
diff --git a/Assets/YooAsset/Runtime/OperationSystem/OperationScheduler.cs.meta b/Assets/YooAsset/Runtime/OperationSystem/OperationScheduler.cs.meta
new file mode 100644
index 00000000..fa2797d8
--- /dev/null
+++ b/Assets/YooAsset/Runtime/OperationSystem/OperationScheduler.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 919380cb845bb8146a03ed154644b89f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs b/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs
index e232ea7a..50cb53e6 100644
--- a/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs
+++ b/Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -15,8 +15,14 @@ namespace YooAsset
         }
 #endif
 
-        private static readonly List<AsyncOperationBase> _operations = new List<AsyncOperationBase>(1000);
-        private static readonly List<AsyncOperationBase> _newList = new List<AsyncOperationBase>(1000);
+        // 全局调度器名称
+        public const string GLOBAL_SCHEDULER_NAME = "";
+
+        private static readonly Dictionary<string, OperationScheduler> _schedulerDic = new Dictionary<string, OperationScheduler>(100);
+        private static readonly List<OperationScheduler> _schedulerList = new List<OperationScheduler>(100);
+        private static bool _schedulerListDirty = false;
+        private static int _createIndex = 0;
+
         private static Action<string, AsyncOperationBase> _startCallback = null;
         private static Action<string, AsyncOperationBase> _finishCallback = null;
 
@@ -25,12 +31,12 @@ namespace YooAsset
         private static long _frameTime;
 
         /// <summary>
-        /// 异步操作的最小时间片段
+        /// 异步操作系统的每帧最大执行预算（毫秒）
         /// </summary>
         public static long MaxTimeSlice { set; get; } = long.MaxValue;
 
         /// <summary>
-        /// 处理器是否繁忙
+        /// 异步操作系统是否繁忙
         /// </summary>
         public static bool IsBusy
         {
@@ -39,7 +45,10 @@ namespace YooAsset
                 if (_watch == null)
                     return false;
 
-                // NOTE : 单次调用开销约1微秒
+                if (MaxTimeSlice == long.MaxValue)
+                    return false;
+
+                // 注意 : 单次调用开销约1微秒
                 return _watch.ElapsedMilliseconds - _frameTime >= MaxTimeSlice;
             }
         }
@@ -51,6 +60,9 @@ namespace YooAsset
         public static void Initialize()
         {
             _watch = Stopwatch.StartNew();
+
+            // 创建全局调度器
+            CreatePackageScheduler(GLOBAL_SCHEDULER_NAME, 0);
         }
 
         /// <summary>
@@ -58,54 +70,23 @@ namespace YooAsset
         /// </summary>
         public static void Update()
         {
-            // 移除已经完成的异步操作
-            // 注意：移除上一帧完成的异步操作，方便调试器接收到完整的信息！
-            for (int i = _operations.Count - 1; i >= 0; i--)
+            // 重新排序调度器
+            if (_schedulerListDirty)
             {
-                var operation = _operations[i];
-                if (operation.IsFinish)
-                {
-                    _operations.RemoveAt(i);
-
-                    if (_finishCallback != null)
-                        _finishCallback.Invoke(operation.PackageName, operation);
-                }
+                _schedulerListDirty = false;
+                _schedulerList.Sort();
             }
 
-            // 添加新增的异步操作
-            if (_newList.Count > 0)
-            {
-                bool sorting = false;
-                foreach (var operation in _newList)
-                {
-                    if (operation.Priority > 0)
-                    {
-                        sorting = true;
-                        break;
-                    }
-                }
-
-                _operations.AddRange(_newList);
-                _newList.Clear();
-
-                // 重新排序优先级
-                if (sorting)
-                    _operations.Sort();
-            }
-
-            // 更新进行中的异步操作
-            bool checkBusy = MaxTimeSlice < long.MaxValue;
+            // 更新帧时间
             _frameTime = _watch.ElapsedMilliseconds;
-            for (int i = 0; i < _operations.Count; i++)
+
+            // 更新调度器
+            for (int i = 0; i < _schedulerList.Count; i++)
             {
-                if (checkBusy && IsBusy)
+                if (IsBusy)
                     break;
 
-                var operation = _operations[i];
-                if (operation.IsFinish)
-                    continue;
-
-                operation.UpdateOperation();
+                _schedulerList[i].Update();
             }
         }
 
@@ -114,8 +95,16 @@ namespace YooAsset
         /// </summary>
         public static void DestroyAll()
         {
-            _operations.Clear();
-            _newList.Clear();
+            // 清空所有调度器
+            foreach (var scheduler in _schedulerList)
+            {
+                scheduler.ClearAll();
+            }
+            _schedulerDic.Clear();
+            _schedulerList.Clear();
+            _schedulerListDirty = false;
+            _createIndex = 0;
+
             _startCallback = null;
             _finishCallback = null;
             _watch = null;
@@ -123,28 +112,48 @@ namespace YooAsset
             MaxTimeSlice = long.MaxValue;
         }
 
+        /// <summary>
+        /// 创建包裹调度器
+        /// </summary>
+        internal static void CreatePackageScheduler(string packageName, int priority)
+        {
+            if (_schedulerDic.ContainsKey(packageName))
+            {
+                throw new YooInternalException($"Package scheduler already exists: {packageName}");
+            }
+
+            var scheduler = new OperationScheduler(packageName, priority, _createIndex++);
+            _schedulerDic.Add(packageName, scheduler);
+            _schedulerList.Add(scheduler);
+            _schedulerListDirty = true;
+        }
+
+        /// <summary>
+        /// 销毁包裹调度器
+        /// </summary>
+        internal static void DestroyPackageScheduler(string packageName)
+        {
+            // 不允许销毁默认调度器
+            if (packageName == GLOBAL_SCHEDULER_NAME)
+            {
+                throw new YooInternalException("Cannot destroy the global package scheduler!");
+            }
+
+            if (_schedulerDic.TryGetValue(packageName, out var scheduler))
+            {
+                scheduler.ClearAll();
+                _schedulerDic.Remove(packageName);
+                _schedulerList.Remove(scheduler);
+            }
+        }
+
         /// <summary>
         /// 销毁包裹的所有任务
         /// </summary>
         public static void ClearPackageOperation(string packageName)
         {
-            // 终止临时队列里的任务
-            foreach (var operation in _newList)
-            {
-                if (operation.PackageName == packageName)
-                {
-                    operation.AbortOperation();
-                }
-            }
-
-            // 终止正在进行的任务
-            foreach (var operation in _operations)
-            {
-                if (operation.PackageName == packageName)
-                {
-                    operation.AbortOperation();
-                }
-            }
+            var scheduler = GetScheduler(packageName);
+            scheduler.ClearAll();
         }
 
         /// <summary>
@@ -152,12 +161,8 @@ namespace YooAsset
         /// </summary>
         public static void StartOperation(string packageName, AsyncOperationBase operation)
         {
-            _newList.Add(operation);
-            operation.SetPackageName(packageName);
-            operation.StartOperation();
-
-            if (_startCallback != null)
-                _startCallback.Invoke(packageName, operation);
+            var scheduler = GetScheduler(packageName);
+            scheduler.StartOperation(operation);
         }
 
         /// <summary>
@@ -176,20 +181,55 @@ namespace YooAsset
             _finishCallback = callback;
         }
 
+        /// <summary>
+        /// 触发任务开始回调
+        /// </summary>
+        internal static void InvokeStartCallback(string packageName, AsyncOperationBase operation)
+        {
+            _startCallback?.Invoke(packageName, operation);
+        }
+
+        /// <summary>
+        /// 触发任务完成回调
+        /// </summary>
+        internal static void InvokeFinishCallback(string packageName, AsyncOperationBase operation)
+        {
+            _finishCallback?.Invoke(packageName, operation);
+        }
+
+        /// <summary>
+        /// 获取调度器（严格模式）
+        /// </summary>
+        private static OperationScheduler GetScheduler(string packageName)
+        {
+            // 空包名路由到默认调度器
+            if (string.IsNullOrEmpty(packageName))
+                packageName = GLOBAL_SCHEDULER_NAME;
+
+            if (_schedulerDic.TryGetValue(packageName, out var scheduler))
+            {
+                return scheduler;
+            }
+
+            // 严格模式：非默认包裹必须先创建调度器
+            throw new YooInternalException($"Package scheduler not found: {packageName}. Please call YooAssets.CreatePackage() first!");
+        }
+
         #region 调试信息
         internal static List<DebugOperationInfo> GetDebugOperationInfos(string packageName)
         {
-            List<DebugOperationInfo> result = new List<DebugOperationInfo>(_operations.Count);
-            foreach (var operation in _operations)
+            // 空包名路由到默认调度器
+            if (string.IsNullOrEmpty(packageName))
+                packageName = GLOBAL_SCHEDULER_NAME;
+
+            if (_schedulerDic.TryGetValue(packageName, out var scheduler))
             {
-                if (operation.PackageName == packageName)
-                {
-                    var operationInfo = GetDebugOperationInfo(operation);
-                    result.Add(operationInfo);
-                }
+                return scheduler.GetDebugOperationInfos();
             }
-            return result;
+
+            return new List<DebugOperationInfo>();
         }
+
         internal static DebugOperationInfo GetDebugOperationInfo(AsyncOperationBase operation)
         {
             var operationInfo = new DebugOperationInfo();
@@ -210,4 +250,4 @@ namespace YooAsset
         }
         #endregion
     }
-}
\ No newline at end of file
+}
diff --git a/Assets/YooAsset/Runtime/ResourcePackage/Operation/DownloaderOperation.cs b/Assets/YooAsset/Runtime/ResourcePackage/Operation/DownloaderOperation.cs
index b87bcd67..de063aad 100644
--- a/Assets/YooAsset/Runtime/ResourcePackage/Operation/DownloaderOperation.cs
+++ b/Assets/YooAsset/Runtime/ResourcePackage/Operation/DownloaderOperation.cs
@@ -108,9 +108,6 @@ namespace YooAsset
             _downloadingMaxNumber = UnityEngine.Mathf.Clamp(downloadingMaxNumber, 1, MAX_LOADER_COUNT); ;
             _failedTryAgain = failedTryAgain;
 
-            // 设置包裹名称 (fix #210)
-            SetPackageName(packageName);
-
             // 统计下载信息
             CalculatDownloaderInfo();
         }
diff --git a/Assets/YooAsset/Runtime/YooAssets.cs b/Assets/YooAsset/Runtime/YooAssets.cs
index 490bb574..635b1822 100644
--- a/Assets/YooAsset/Runtime/YooAssets.cs
+++ b/Assets/YooAsset/Runtime/YooAssets.cs
@@ -114,6 +114,16 @@ namespace YooAsset
         /// </summary>
         /// <param name="packageName">包裹名称</param>
         public static ResourcePackage CreatePackage(string packageName)
+        {
+            return CreatePackage(packageName, 0);
+        }
+
+        /// <summary>
+        /// 创建资源包裹
+        /// </summary>
+        /// <param name="packageName">包裹名称</param>
+        /// <param name="packagePriority">包裹优先级（值越大越优先更新）</param>
+        public static ResourcePackage CreatePackage(string packageName, int packagePriority)
         {
             CheckException(packageName);
             if (ContainsPackage(packageName))
@@ -122,6 +132,10 @@ namespace YooAsset
             YooLogger.Log($"Create resource package : {packageName}");
             ResourcePackage package = new ResourcePackage(packageName);
             _packages.Add(package);
+
+            // 注册包裹调度器
+            OperationSystem.CreatePackageScheduler(packageName, packagePriority);
+
             return package;
         }
 
@@ -185,6 +199,10 @@ namespace YooAsset
             }
 
             YooLogger.Log($"Remove resource package : {packageName}");
+
+            // 先销毁调度器，再移除包裹
+            OperationSystem.DestroyPackageScheduler(packageName);
+
             _packages.Remove(package);
             return true;
         }