diff --git a/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs b/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs
index 87b40f3a..0109a255 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs	
@@ -53,7 +53,8 @@ internal class WXFSClearUnusedBundleFilesAsync : FSClearCacheFilesOperation
                     string bundleGUID = Path.GetFileNameWithoutExtension(fileStat.path);
                     if (_manifest.TryGetPackageBundleByBundleGUID(bundleGUID, out PackageBundle value) == false)
                     {
-                        _unusedCacheFiles.Add(fileStat.path);
+                        string fullPath = WX.GetCachePath(fileStat.path);
+                        if (!_unusedCacheFiles.Contains(fullPath)) _unusedCacheFiles.Add(fullPath);
                     }
                 }
 
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/WechatFileSystem.cs b/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/WechatFileSystem.cs
index 1220a8f8..ab3cbe59 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/WechatFileSystem.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Runtime/ExtensionFileSystem/WechatFileSystem/WechatFileSystem.cs	
@@ -183,6 +183,11 @@ internal class WechatFileSystem : IFileSystem
             throw new System.Exception("请配置微信小游戏缓存根目录！");
         }
 
+        if (!_wxCacheRoot.StartsWith(WX.PluginCachePath))
+        {
+            _wxCacheRoot = PathUtility.Combine(WX.PluginCachePath, _wxCacheRoot);
+        }
+
         // 注意：CDN服务未启用的情况下，使用微信WEB服务器
         if (RemoteServices == null)
         {