diff --git a/Assets/YooAsset/Runtime/YooAssets.cs b/Assets/YooAsset/Runtime/YooAssets.cs
index 8a762d7..e8a90e0 100644
--- a/Assets/YooAsset/Runtime/YooAssets.cs
+++ b/Assets/YooAsset/Runtime/YooAssets.cs
@@ -12,6 +12,8 @@ namespace YooAsset
         private static GameObject _driver = null;
         private static readonly List<ResourcePackage> _packages = new List<ResourcePackage>();
 
+        public const string DefaultPackageVersion_Key = "DefaultPackageVersion_Key";
+
         /// <summary>
         /// 是否已经初始化
         /// </summary>
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearAllBundleFilesOperation.cs.meta b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearAllBundleFilesOperation.cs.meta
new file mode 100644
index 0000000..984245b
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearAllBundleFilesOperation.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: d48600eb90915544586c0108b94cfd02
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs
new file mode 100644
index 0000000..c3384c9
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs	
@@ -0,0 +1,186 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using System.Collections.Generic;
+using WeChatWASM;
+using YooAsset;
+using UnityEngine;
+using System.Linq;
+
+internal class WXFSClearUnusedBundleFilesAsync : FSClearUnusedBundleFilesOperation
+{
+    private enum ESteps
+    {
+        None,
+        LoadCachePackageInfo,
+        VerifyFileData,
+        LoadManifest,
+        GetUnusedCacheFiles,
+        ClearUnusedCacheFiles,
+        Done,
+    }
+
+    private WechatFileSystem _fileSystem;
+    private readonly PackageManifest _manifest;
+    private PackageManifest _cacheManifest;
+    private List<string> _unusedBundleGUIDs;
+    private ESteps _steps = ESteps.None;
+    private DeserializeManifestOperation _deserializer;
+    private byte[] _fileData;
+    private string _packageHash;
+    private int _unusedFileTotalCount = 0;
+    private string _lastPackageVersion;
+
+    internal WXFSClearUnusedBundleFilesAsync(WechatFileSystem fileSystem, PackageManifest manifest)
+    {
+        _fileSystem = fileSystem;
+        _manifest = manifest;
+    }
+    internal override void InternalOnStart()
+    {
+        _steps = ESteps.LoadCachePackageInfo;
+    }
+    internal override void InternalOnUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.LoadCachePackageInfo)
+        {
+            LoadManifestInfo();
+            if(_fileData != null && _fileData.Length > 0 && !string.IsNullOrEmpty(_packageHash))
+            {
+                _steps = ESteps.VerifyFileData;
+                Debug.Log($"===_packageHash==={_packageHash}");
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = "Failed to load cache package manifest file!";
+            }
+            
+            //YooLogger.Log($"Found unused cache files count : {_unusedFileTotalCount}");
+        }
+
+        if(_steps == ESteps.VerifyFileData) 
+        {
+            string fileHash = HashUtility.BytesMD5(_fileData);
+            if (fileHash == _packageHash)
+            {
+                _steps = ESteps.LoadManifest;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = "Failed to verify cache package manifest file!";
+            }
+        }
+
+        if (_steps == ESteps.LoadManifest)
+        {
+            if (_deserializer == null)
+            {
+                _deserializer = new DeserializeManifestOperation(_fileData);
+                OperationSystem.StartOperation(_fileSystem.PackageName, _deserializer);
+            }
+
+            Progress = _deserializer.Progress;
+            if (_deserializer.IsDone == false)
+                return;
+
+            if (_deserializer.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.GetUnusedCacheFiles;
+                _cacheManifest = _deserializer.Manifest;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _deserializer.Error;
+            }
+        }
+
+        if(_steps == ESteps.GetUnusedCacheFiles) 
+        {
+            _unusedBundleGUIDs = GetUnusedBundleGUIDs();
+            _unusedFileTotalCount = _unusedBundleGUIDs.Count;
+            _steps = ESteps.ClearUnusedCacheFiles;
+            YooLogger.Log($"Found unused cache files count : {_unusedFileTotalCount}");
+        }
+
+        if (_steps == ESteps.ClearUnusedCacheFiles)
+        {
+            for (int i = _unusedBundleGUIDs.Count - 1; i >= 0; i--)
+            {
+                string bundleGUID = _unusedBundleGUIDs[i];
+                PackageBundle bundle = null;
+                if(_cacheManifest.TryGetPackageBundleByBundleGUID(bundleGUID,out bundle))
+                {
+                    if (bundle != null)
+                    {
+                        var cachePath = GetUnuseCachePathByBundleName(bundle.FileName);
+                        WX.RemoveFile(cachePath, (bool isOk) =>
+                        {
+                            Debug.Log($"{_unusedBundleGUIDs.Count}---删除缓存文件路径成功====={cachePath}==");
+                            //_unusedBundleGUIDs.Remove(cachePath);
+                        });
+
+                        //_fileSystem.DeleteCacheFile(bundleGUID);
+                        _unusedBundleGUIDs.RemoveAt(i);
+                    }
+                }
+                
+                if (OperationSystem.IsBusy)
+                    break;
+            }
+
+            if (_unusedFileTotalCount == 0)
+                Progress = 1.0f;
+            else
+                Progress = 1.0f - (_unusedBundleGUIDs.Count / _unusedFileTotalCount);
+
+            if (_unusedBundleGUIDs.Count == 0)
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+            }
+        }
+    }
+
+    private List<string> GetUnusedBundleGUIDs()
+    {
+        var allBundleGUIDs = _cacheManifest.BundleDic3.Keys.ToList();
+        List<string> result = new List<string>(allBundleGUIDs.Count);
+        foreach (var bundleGUID in allBundleGUIDs)
+        {
+            if (_manifest.IsIncludeBundleFile(bundleGUID) == false)
+            {
+                result.Add(bundleGUID);
+            }
+        }
+        return result;
+    }
+
+    private void LoadManifestInfo()
+    {
+        var packageName = _fileSystem.PackageName;
+        _lastPackageVersion = WX.StorageGetStringSync(YooAssets.DefaultPackageVersion_Key, "100000");
+        Debug.Log($"==========取出本地数据版本文件成功==={_lastPackageVersion}");
+        if (!string.IsNullOrEmpty(_lastPackageVersion))
+        {
+            var cacheManifestHashPath = GetUnuseCachePathByBundleName(YooAssetSettingsData.GetPackageHashFileName(packageName, _lastPackageVersion));
+            var cacheManifestPath = GetUnuseCachePathByBundleName(YooAssetSettingsData.GetManifestBinaryFileName(packageName, _lastPackageVersion));
+
+            _packageHash = _fileSystem.ReadFileText(cacheManifestHashPath);
+            _fileData = _fileSystem.ReadFileData(cacheManifestPath);
+        }
+    }
+
+    private string GetUnuseCachePathByBundleName(string fileName)
+    {
+        var path = $"StreamingAssets/WebGL/v{WechatFileSystemCreater.AppVersion}/{fileName}";
+        return WX.GetCachePath(path);
+    }
+}
+#endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs.meta b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs.meta
new file mode 100644
index 0000000..f660e19
--- /dev/null
+++ b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e4938d8a5a9d7f24db37f8df6b32501f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/WechatFileSystem.cs b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/WechatFileSystem.cs
index 894a3bd..349b641 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/WechatFileSystem.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Runtime/WechatFileSystem/WechatFileSystem.cs	
@@ -6,13 +6,18 @@ using WeChatWASM;
 
 public static class WechatFileSystemCreater
 {
-    public static FileSystemParameters CreateWechatFileSystemParameters(IRemoteServices remoteServices)
+    public static FileSystemParameters CreateWechatFileSystemParameters(IRemoteServices remoteServices,string rootDirectory = null)
     {
         string fileSystemClass = $"{nameof(WechatFileSystem)},YooAsset.RuntimeExtension";
-        var fileSystemParams = new FileSystemParameters(fileSystemClass, null);
+        var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
         fileSystemParams.AddParameter("REMOTE_SERVICES", remoteServices);
         return fileSystemParams;
     }
+
+    /// <summary>
+    /// AppVersion
+    /// </summary>
+    public static string AppVersion { get; set; }
 }
 
 /// <summary>
@@ -82,12 +87,12 @@ internal class WechatFileSystem : IFileSystem
         }
     }
 
-    #region 自定义参数
+#region 自定义参数
     /// <summary>
     /// 自定义参数：远程服务接口
     /// </summary>
     public IRemoteServices RemoteServices { private set; get; } = null;
-    #endregion
+#endregion
 
 
     public WechatFileSystem()
@@ -113,13 +118,13 @@ internal class WechatFileSystem : IFileSystem
     }
     public virtual FSClearAllBundleFilesOperation ClearAllBundleFilesAsync()
     {
-        var operation = new FSClearAllBundleFilesCompleteOperation();
+        var operation = new WXFSClearAllBundleFilesOperation(this);
         OperationSystem.StartOperation(PackageName, operation);
         return operation;
     }
     public virtual FSClearUnusedBundleFilesOperation ClearUnusedBundleFilesAsync(PackageManifest manifest)
     {
-        var operation = new FSClearUnusedBundleFilesCompleteOperation();
+        var operation = new WXFSClearUnusedBundleFilesAsync(this, manifest);
         OperationSystem.StartOperation(PackageName, operation);
         return operation;
     }
@@ -167,7 +172,7 @@ internal class WechatFileSystem : IFileSystem
         }
 
         _fileSystemManager = WX.GetFileSystemManager();
-        _fileCacheRoot = WX.env.USER_DATA_PATH; //注意：如果有子目录，请修改此处！
+        _fileCacheRoot = rootDirectory;// WX.PluginCachePath; //WX.env.USER_DATA_PATH; //注意：如果有子目录，请修改此处！
     }
     public virtual void OnUpdate()
     {
@@ -179,9 +184,9 @@ internal class WechatFileSystem : IFileSystem
     }
     public virtual bool Exists(PackageBundle bundle)
     {
-        string filePath = GetCacheFileLoadPath(bundle);
-        string result = _fileSystemManager.AccessSync(filePath);
-        return result.Equals("access:ok");
+        string filePath = GetWXFileLoadPath(bundle);
+        //Debug.Log($"CacheFile:{WX.GetCachePath($"StreamingAssets/WebGL/v1.0.0/{bundle.FileName}")}");
+        return CheckWXFileIsExist(filePath);
     }
     public virtual bool NeedDownload(PackageBundle bundle)
     {
@@ -207,8 +212,42 @@ internal class WechatFileSystem : IFileSystem
     {
         throw new System.NotImplementedException();
     }
+    public byte[] ReadFileData(string filePath)
+    {
+        if (CheckWXFileIsExist(filePath))
+            return _wxFileSystemMgr.ReadFileSync(filePath);
+        else
+            return Array.Empty<byte>();
+        //throw new System.NotImplementedException();
+    }
 
-    #region 内部方法
+    public string ReadFileText(string filePath)
+    {
+        if(CheckWXFileIsExist(filePath))
+            return _wxFileSystemMgr.ReadFileSync(filePath, "utf8");
+        else
+            return string.Empty;
+        //throw new System.NotImplementedException();
+    }
+    /// <summary>
+    /// 获取所有缓存文件的路径
+    /// </summary>
+    /// <returns></returns>
+    public Dictionary<string,string> GetWXAllCacheFilePath() 
+    {
+        return _wxFilePaths;
+    }
+    /// <summary>
+    /// 判断微信缓存文件是否存在
+    /// </summary>
+    /// <param name="filePath"></param>
+    /// <returns></returns>
+    public bool CheckWXFileIsExist(string filePath)
+    {
+        string result = _wxFileSystemMgr.AccessSync(filePath);
+        return result.Equals("access:ok");
+    }
+#region 内部方法
     private string GetCacheFileLoadPath(PackageBundle bundle)
     {
         if (_cacheFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
@@ -218,6 +257,6 @@ internal class WechatFileSystem : IFileSystem
         }
         return filePath;
     }
-    #endregion
+#endregion
 }
 #endif
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmClearPackageCache.cs b/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmClearPackageCache.cs
index b64b29b..eabb992 100644
--- a/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmClearPackageCache.cs	
+++ b/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmClearPackageCache.cs	
@@ -32,6 +32,22 @@ internal class FsmClearPackageCache : IStateNode
 
     private void Operation_Completed(YooAsset.AsyncOperationBase obj)
     {
+#if UNITY_WEBGL || WEIXINMINIGAME
+
+			//删除旧的资源清单文件和哈希文件
+			if (WX.StorageHasKeySync(YooAssets.DefaultPackageVersion_Key))
+			{
+                var packageName = (string)_machine.GetBlackboardValue("PackageName");
+                var packageVersion = (string)_machine.GetBlackboardValue("PackageVersion");
+                var lastPackageVersion = WX.StorageGetStringSync(YooAssets.DefaultPackageVersion_Key, "");
+				if (!string.IsNullOrEmpty(lastPackageVersion) && lastPackageVersion != packageVersion)
+				{
+                    WX.StorageSetStringSync(YooAssets.DefaultPackageVersion_Key, packageVersion);
+                    Debug.Log($"==========本地数据版本文件设置成功==={packageVersion}");
+
+                }
+			}
+#endif
         _machine.ChangeState<FsmUpdaterDone>();
     }
 }
\ No newline at end of file
diff --git a/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmInitializePackage.cs b/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmInitializePackage.cs
index b986cb8..cb88dee 100644
--- a/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmInitializePackage.cs	
+++ b/Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmInitializePackage.cs	
@@ -74,7 +74,15 @@ internal class FsmInitializePackage : IStateNode
         if (playMode == EPlayMode.WebPlayMode)
         {
             var createParameters = new WebPlayModeParameters();
+#if UNITY_WEBGL && WEIXINMINIGAME && !UNITY_EDITOR
+				string defaultHostServer = GetHostServerURL();
+                string fallbackHostServer = GetHostServerURL();
+                IRemoteServices remoteServices = new RemoteServices(defaultHostServer, fallbackHostServer);
+                var rootDir = string.Format("{0}/{1}", WX.PluginCachePath, $"StreamingAssets/WebGL/v1.0.0");//这个1.0.0是App大版本文件，转微信小游戏后，没删除
+                createParameters.WebFileSystemParameters = WechatFileSystemCreater.CreateWechatFileSystemParameters(remoteServices, rootDir);
+#else
             createParameters.WebFileSystemParameters = FileSystemParameters.CreateDefaultWebFileSystemParameters();
+#endif
             initializationOperation = package.InitializeAsync(createParameters);
         }