diff --git a/Assets/YooAsset/Runtime/PatchSystem/Operations/UpdatePackageManifestOperation.cs b/Assets/YooAsset/Runtime/PatchSystem/Operations/UpdatePackageManifestOperation.cs
index 8e6d061..ac79014 100644
--- a/Assets/YooAsset/Runtime/PatchSystem/Operations/UpdatePackageManifestOperation.cs
+++ b/Assets/YooAsset/Runtime/PatchSystem/Operations/UpdatePackageManifestOperation.cs
@@ -9,6 +9,10 @@ namespace YooAsset
 	/// </summary>
 	public abstract class UpdatePackageManifestOperation : AsyncOperationBase
 	{
+		/// <summary>
+		/// 保存清单版本文件到沙盒
+		/// </summary>
+		public virtual void FlushManifestVersionFile() { }
 	}
 
 	/// <summary>
@@ -173,5 +177,10 @@ namespace YooAsset
 				}
 			}
 		}
+
+		public override void FlushManifestVersionFile() 
+		{
+			_impl.FlushManifestVersionFile();
+		}
 	}
 }
\ No newline at end of file
diff --git a/Assets/YooAsset/Runtime/PatchSystem/PlayMode/EditorSimulateModeImpl.cs b/Assets/YooAsset/Runtime/PatchSystem/PlayMode/EditorSimulateModeImpl.cs
index 7ad2489..e2f52f5 100644
--- a/Assets/YooAsset/Runtime/PatchSystem/PlayMode/EditorSimulateModeImpl.cs
+++ b/Assets/YooAsset/Runtime/PatchSystem/PlayMode/EditorSimulateModeImpl.cs
@@ -33,9 +33,8 @@ namespace YooAsset
 				return _activeManifest;
 			}
 		}
-		public bool IsBuildinPackageBundle(PackageBundle packageBundle)
+		public void FlushManifestVersionFile() 
 		{
-			return true;
 		}
 
 		UpdatePackageVersionOperation IPlayModeServices.UpdatePackageVersionAsync(bool appendTimeTicks, int timeout)
diff --git a/Assets/YooAsset/Runtime/PatchSystem/PlayMode/HostPlayModeImpl.cs b/Assets/YooAsset/Runtime/PatchSystem/PlayMode/HostPlayModeImpl.cs
index 025edf1..290c10f 100644
--- a/Assets/YooAsset/Runtime/PatchSystem/PlayMode/HostPlayModeImpl.cs
+++ b/Assets/YooAsset/Runtime/PatchSystem/PlayMode/HostPlayModeImpl.cs
@@ -84,22 +84,27 @@ namespace YooAsset
 			{
 				_activeManifest = value;
 				_activeManifest.InitAssetPathMapping(_locationToLower);
-				PersistentHelper.SaveCachePackageVersionFile(_packageName, _activeManifest.PackageVersion);
 			}
 			get
 			{
 				return _activeManifest;
 			}
 		}
-		public bool IsBuildinPackageBundle(PackageBundle packageBundle)
+		public void FlushManifestVersionFile()
+		{
+			if (_activeManifest != null)
+				PersistentHelper.SaveCachePackageVersionFile(_packageName, _activeManifest.PackageVersion);
+		}
+
+		private bool IsBuildinPackageBundle(PackageBundle packageBundle)
 		{
 			return _queryServices.QueryStreamingAssets(packageBundle.FileName);
 		}
-		public bool IsCachedPackageBundle(PackageBundle packageBundle)
+		private bool IsCachedPackageBundle(PackageBundle packageBundle)
 		{
 			return CacheSystem.IsCached(packageBundle.PackageName, packageBundle.CacheGUID);
 		}
-		
+
 		UpdatePackageVersionOperation IPlayModeServices.UpdatePackageVersionAsync(bool appendTimeTicks, int timeout)
 		{
 			var operation = new HostPlayModeUpdatePackageVersionOperation(this, _packageName, appendTimeTicks, timeout);
diff --git a/Assets/YooAsset/Runtime/PatchSystem/PlayMode/OfflinePlayModeImpl.cs b/Assets/YooAsset/Runtime/PatchSystem/PlayMode/OfflinePlayModeImpl.cs
index 37617aa..a99439d 100644
--- a/Assets/YooAsset/Runtime/PatchSystem/PlayMode/OfflinePlayModeImpl.cs
+++ b/Assets/YooAsset/Runtime/PatchSystem/PlayMode/OfflinePlayModeImpl.cs
@@ -33,9 +33,8 @@ namespace YooAsset
 				return _activeManifest;
 			}
 		}
-		public bool IsBuildinPackageBundle(PackageBundle packageBundle)
+		public void FlushManifestVersionFile()
 		{
-			return true;
 		}
 
 		UpdatePackageVersionOperation IPlayModeServices.UpdatePackageVersionAsync(bool appendTimeTicks, int timeout)
diff --git a/Assets/YooAsset/Runtime/Services/Internal/IPlayModeServices.cs b/Assets/YooAsset/Runtime/Services/Internal/IPlayModeServices.cs
index 0c8a5fb..834e0bc 100644
--- a/Assets/YooAsset/Runtime/Services/Internal/IPlayModeServices.cs
+++ b/Assets/YooAsset/Runtime/Services/Internal/IPlayModeServices.cs
@@ -7,11 +7,11 @@ namespace YooAsset
 		/// 激活的清单
 		/// </summary>
 		PackageManifest ActiveManifest { set; get; }
-
+		
 		/// <summary>
-		/// 是否为内置资源文件
+		/// 保存清单版本文件到沙盒
 		/// </summary>
-		bool IsBuildinPackageBundle(PackageBundle packageBundle);
+		void FlushManifestVersionFile();
 
 		/// <summary>
 		/// 向网络端请求最新的资源版本