diff --git a/index.d.ts b/index.d.ts
index 8cd403d..0b440a4 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -127,6 +127,8 @@ declare namespace COS {
   /** 上传/下载的进度回调方法 */
   type onProgress = (params: ProgressInfo) => any;
 
+  type CopySourceParserFunction = (source: string) => null | { Bucket: string; Region: string; Key: string };
+
   // 实例参数
   interface COSOptions {
     /** 固定密钥的 SecretId，可从{@link https://console.cloud.tencent.com/cam/capi|API密钥管理}获取 */
@@ -199,6 +201,8 @@ declare namespace COS {
     /** 默认将host加入签名计算，关闭后可能导致越权风险，建议保持为true */
     ForceSignHost?: boolean;
     AutoSwitchHost?: boolean;
+    /** 自定义拷贝源解析器 */
+    CopySourceParser?: null | CopySourceParserFunction;
     /** 获取签名的回调方法，如果没有 SecretId、SecretKey 时，必选 */
     getAuthorization?: (
       options: GetAuthorizationOptions,
@@ -1808,7 +1812,9 @@ Bulk：批量模式，恢复时间为24 - 48小时。 */
   // uploadFiles
   type UploadFileItemParams = (PutObjectParams | SliceUploadFileParams) & {
     /** 要上传的本地文件路径 */
-    FilePath: string;
+    FilePath?: string;
+    /** 要上传对象内容 */
+    Body?: UploadBody;
     /** 上传的进度回调方法 */
     onProgress?: onProgress;
     /** 上传完成回调方法 */
diff --git a/package.json b/package.json
index 39e161e..5a423b6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cos-nodejs-sdk-v5",
-  "version": "2.13.1",
+  "version": "2.13.2",
   "description": "cos nodejs sdk v5",
   "main": "index.js",
   "types": "index.d.ts",
diff --git a/sdk/advance.js b/sdk/advance.js
index bc12ec6..5895fe9 100644
--- a/sdk/advance.js
+++ b/sdk/advance.js
@@ -971,60 +971,70 @@ function uploadFiles(params, callback) {
   var taskList = [];
   var count = params.files.length;
   util.each(params.files, function (fileParams, index) {
-    fs.stat(fileParams.FilePath, function (err, stat) {
-      var isDir = stat ? stat.isDirectory() : false;
-      var FileSize = (fileParams.ContentLength = stat ? stat.size : 0);
-      var fileInfo = { Index: index, TaskId: '' };
-
-      // 更新文件总大小
-      TotalSize += FileSize;
-
-      // 整理 option，用于返回给回调
-      util.each(fileParams, function (v, k) {
-        if (typeof v !== 'object' && typeof v !== 'function') {
-          fileInfo[k] = v;
-        }
+    var isDir = false;
+    var FileSize = 0;
+    if (fileParams.Body) {
+      util.getFileSize('putObject', fileParams, function (err, size) {
+        FileSize = fileParams.ContentLengt = size;
       });
+    } else if (fileParams.FilePath) {
+      var stat;
+      try {
+        stat = fs.statSync(fileParams.FilePath);
+      } catch (e) {}
+      isDir = stat ? stat.isDirectory() : false;
+      FileSize = fileParams.ContentLength = stat ? stat.size : 0;
+    }
+    var fileInfo = { Index: index, TaskId: '' };
 
-      // 处理单个文件 TaskReady
-      var _onTaskReady = fileParams.onTaskReady;
-      var onTaskReady = function (tid) {
-        fileInfo.TaskId = tid;
-        _onTaskReady && _onTaskReady(tid);
-      };
-      fileParams.onTaskReady = onTaskReady;
-
-      // 处理单个文件进度
-      var PreAddSize = 0;
-      var _onProgress = fileParams.onProgress;
-      var onProgress = function (info) {
-        TotalFinish = TotalFinish - PreAddSize + info.loaded;
-        PreAddSize = info.loaded;
-        _onProgress && _onProgress(info);
-        onTotalProgress({ loaded: TotalFinish, total: TotalSize });
-      };
-      fileParams.onProgress = onProgress;
-
-      // 处理单个文件完成
-      var _onFileFinish = fileParams.onFileFinish;
-      var onFileFinish = function (err, data) {
-        _onFileFinish && _onFileFinish(err, data);
-        onTotalFileFinish && onTotalFileFinish(err, data, fileInfo);
-      };
+    // 更新文件总大小
+    TotalSize += FileSize;
 
-      // 添加上传任务
-      var api = FileSize <= SliceSize || isDir ? 'putObject' : 'sliceUploadFile';
-      if (api === 'putObject') {
-        fileParams.Body = isDir ? '' : fs.createReadStream(fileParams.FilePath);
-        fileParams.Body.isSdkCreated = true;
+    // 整理 option，用于返回给回调
+    util.each(fileParams, function (v, k) {
+      if (typeof v !== 'object' && typeof v !== 'function') {
+        fileInfo[k] = v;
       }
-      taskList.push({
-        api: api,
-        params: fileParams,
-        callback: onFileFinish,
-      });
-      --count === 0 && self._addTasks(taskList);
     });
+
+    // 处理单个文件 TaskReady
+    var _onTaskReady = fileParams.onTaskReady;
+    var onTaskReady = function (tid) {
+      fileInfo.TaskId = tid;
+      _onTaskReady && _onTaskReady(tid);
+    };
+    fileParams.onTaskReady = onTaskReady;
+
+    // 处理单个文件进度
+    var PreAddSize = 0;
+    var _onProgress = fileParams.onProgress;
+    var onProgress = function (info) {
+      TotalFinish = TotalFinish - PreAddSize + info.loaded;
+      PreAddSize = info.loaded;
+      _onProgress && _onProgress(info);
+      onTotalProgress({ loaded: TotalFinish, total: TotalSize });
+    };
+    fileParams.onProgress = onProgress;
+
+    // 处理单个文件完成
+    var _onFileFinish = fileParams.onFileFinish;
+    var onFileFinish = function (err, data) {
+      _onFileFinish && _onFileFinish(err, data);
+      onTotalFileFinish && onTotalFileFinish(err, data, fileInfo);
+    };
+
+    // 添加上传任务，传入 Body 则只支持简单上传
+    var api = FileSize <= SliceSize || isDir || fileParams.Body ? 'putObject' : 'sliceUploadFile';
+    if (api === 'putObject' && fileParams.FilePath && !fileParams.Body) {
+      fileParams.Body = isDir ? '' : fs.createReadStream(fileParams.FilePath);
+      fileParams.Body.isSdkCreated = true;
+    }
+    taskList.push({
+      api: api,
+      params: fileParams,
+      callback: onFileFinish,
+    });
+    --count === 0 && self._addTasks(taskList);
   });
 }
 
diff --git a/sdk/base.js b/sdk/base.js
index 56c32de..6462f6b 100644
--- a/sdk/base.js
+++ b/sdk/base.js
@@ -3092,7 +3092,7 @@ function multipartComplete(params, callback) {
         protocol: self.options.Protocol,
         domain: self.options.Domain,
         bucket: params.Bucket,
-        region: params.Region,
+        region: !self.options.UseAccelerate ? params.Region : 'accelerate',
         object: params.Key,
         isLocation: true,
       });
diff --git a/sdk/cos.js b/sdk/cos.js
index ea99d11..d9301aa 100644
--- a/sdk/cos.js
+++ b/sdk/cos.js
@@ -45,6 +45,7 @@ var defaultOptions = {
   ConfCwd: '',
   ForceSignHost: true, // 默认将host加入签名计算，关闭后可能导致越权风险，建议保持为true
   AutoSwitchHost: true,
+  CopySourceParser: null, // 自定义拷贝源解析器
   // 动态秘钥，优先级Credentials > SecretId/SecretKey。注意Cred内是小写的secretId、secretKey
   Credentials: {
     secretId: '',