diff --git a/Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheHelper.cs b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheHelper.cs
new file mode 100644
index 0000000..d984476
--- /dev/null
+++ b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheHelper.cs
@@ -0,0 +1,25 @@
+using System;
+using System.IO;
+
+namespace YooAsset
+{
+    internal class CacheHelper
+    {
+        /// <summary>
+        /// 获取默认的缓存根目录
+        /// </summary>
+        public static string GetDefaultCacheRoot()
+        {
+#if UNITY_EDITOR
+            // 注意：为了方便调试查看，编辑器下把存储目录放到项目里。
+            string projectPath = Path.GetDirectoryName(UnityEngine.Application.dataPath);
+            projectPath = PathUtility.RegularPath(projectPath);
+            return PathUtility.Combine(projectPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
+#elif UNITY_STANDALONE
+            return PathUtility.Combine(UnityEngine.Application.dataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
+#else
+            return PathUtility.Combine(UnityEngine.Application.persistentDataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);	
+#endif
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/YooAsset/Runtime/FileSystem/FileSystemHelper.cs.meta b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheHelper.cs.meta
similarity index 100%
rename from Assets/YooAsset/Runtime/FileSystem/FileSystemHelper.cs.meta
rename to Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheHelper.cs.meta
diff --git a/Assets/YooAsset/Runtime/FileSystem/FileSystemHelper.cs b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/FileVerifyHelper.cs
similarity index 97%
rename from Assets/YooAsset/Runtime/FileSystem/FileSystemHelper.cs
rename to Assets/YooAsset/Runtime/FileSystem/CacheSystem/FileVerifyHelper.cs
index b2f606b..bbfe2b9 100644
--- a/Assets/YooAsset/Runtime/FileSystem/FileSystemHelper.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/FileVerifyHelper.cs
@@ -3,7 +3,7 @@ using System.IO;
 
 namespace YooAsset
 {
-    internal class FileSystemHelper
+    internal class FileVerifyHelper
     {
         /// <summary>
         /// 文件校验
diff --git a/Assets/YooAsset/Runtime/FileSystem/CacheSystem/FileVerifyHelper.cs.meta b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/FileVerifyHelper.cs.meta
new file mode 100644
index 0000000..8f8bbb0
--- /dev/null
+++ b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/FileVerifyHelper.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: db3336ad3b5a8f349a3144e77f23fcf8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyCacheFilesOperation.cs b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyCacheFilesOperation.cs
index 53d2761..b2496ff 100644
--- a/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyCacheFilesOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyCacheFilesOperation.cs
@@ -165,7 +165,7 @@ namespace YooAsset
                 return EFileVerifyResult.Exception;
             }
 
-            return FileSystemHelper.FileVerify(element.DataFilePath, element.DataFileSize, element.DataFileCRC, verifyLevel);
+            return FileVerifyHelper.FileVerify(element.DataFilePath, element.DataFileSize, element.DataFileCRC, verifyLevel);
         }
     }
 }
\ No newline at end of file
diff --git a/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyTempFileOperation.cs b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyTempFileOperation.cs
index f246e00..271cdaa 100644
--- a/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyTempFileOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyTempFileOperation.cs
@@ -84,7 +84,7 @@ namespace YooAsset
         private void VerifyInThread(object obj)
         {
             TempFileElement element = (TempFileElement)obj;
-            int result = (int)FileSystemHelper.FileVerify(element.TempFilePath, element.TempFileSize, element.TempFileCRC, EFileVerifyLevel.High);
+            int result = (int)FileVerifyHelper.FileVerify(element.TempFilePath, element.TempFileSize, element.TempFileCRC, EFileVerifyLevel.High);
             element.Result = result;
         }
     }
diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs
index eee98e2..b719952 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs
@@ -20,7 +20,7 @@ namespace YooAsset
         protected readonly Dictionary<string, string> _tempFilePaths = new Dictionary<string, string>(10000);
         protected readonly List<string> _removeList = new List<string>(1000);
         protected string _packageRoot;
-        protected string _saveFileRoot;
+        protected string _cacheFileRoot;
         protected string _tempFileRoot;
         protected string _manifestFileRoot;
 
@@ -238,10 +238,10 @@ namespace YooAsset
             PackageName = packageName;
 
             if (string.IsNullOrEmpty(rootDirectory))
-                rootDirectory = GetDefaultRoot();
+                rootDirectory = CacheHelper.GetDefaultCacheRoot();
 
             _packageRoot = PathUtility.Combine(rootDirectory, packageName);
-            _saveFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.SaveFilesFolderName);
+            _cacheFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.SaveFilesFolderName);
             _tempFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.TempFilesFolderName);
             _manifestFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.ManifestFilesFolderName);
         }
@@ -359,7 +359,7 @@ namespace YooAsset
         #region 缓存系统
         public string GetCacheFileRoot()
         {
-            return _saveFileRoot;
+            return _cacheFileRoot;
         }
         public List<string> GetAllCachedBundleGUIDs()
         {
@@ -387,7 +387,7 @@ namespace YooAsset
             if (_wrappers.TryGetValue(bundle.BundleGUID, out CacheWrapper wrapper) == false)
                 return EFileVerifyResult.CacheNotFound;
 
-            EFileVerifyResult result = FileSystemHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
+            EFileVerifyResult result = FileVerifyHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
             return result;
         }
         public bool WriteCacheFile(PackageBundle bundle, string copyPath)
@@ -472,25 +472,12 @@ namespace YooAsset
         #endregion
 
         #region 内部方法
-        protected string GetDefaultRoot()
-        {
-#if UNITY_EDITOR
-            // 注意：为了方便调试查看，编辑器下把存储目录放到项目里。
-            string projectPath = Path.GetDirectoryName(UnityEngine.Application.dataPath);
-            projectPath = PathUtility.RegularPath(projectPath);
-            return PathUtility.Combine(projectPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
-#elif UNITY_STANDALONE
-            return PathUtility.Combine(UnityEngine.Application.dataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
-#else
-            return PathUtility.Combine(UnityEngine.Application.persistentDataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);	
-#endif
-        }
         protected string GetDataFilePath(PackageBundle bundle)
         {
             if (_dataFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
             {
                 string folderName = bundle.FileHash.Substring(0, 2);
-                filePath = PathUtility.Combine(_saveFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleDataFileName);
+                filePath = PathUtility.Combine(_cacheFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleDataFileName);
                 if (AppendFileExtension)
                     filePath += bundle.FileExtension;
                 _dataFilePaths.Add(bundle.BundleGUID, filePath);
@@ -502,7 +489,7 @@ namespace YooAsset
             if (_infoFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
             {
                 string folderName = bundle.FileHash.Substring(0, 2);
-                filePath = PathUtility.Combine(_saveFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleInfoFileName);
+                filePath = PathUtility.Combine(_cacheFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleInfoFileName);
                 _infoFilePaths.Add(bundle.BundleGUID, filePath);
             }
             return filePath;