diff --git a/lib/Lib/Core/Http.js b/lib/Lib/Core/Http.js
index a07ea8a3..dadf9f09 100644
--- a/lib/Lib/Core/Http.js
+++ b/lib/Lib/Core/Http.js
@@ -118,7 +118,7 @@ module.exports = Class(function(){
       }
       //上传的数据中是否含有文件的检测正则
       var multiReg = /^multipart\/(form-data|related);\s*boundary=(?:"([^"]+)"|([^;]+))$/i;
-      if (multiReg.test(this.http.contentType)) {
+      if (multiReg.test(this.req.headers['content-type'])) {
         return this._filePost();
       }else{
         return this._commonPost();