diff --git a/lib/Lib/Core/Model.js b/lib/Lib/Core/Model.js
index 1c25e43c..14d1ead6 100644
--- a/lib/Lib/Core/Model.js
+++ b/lib/Lib/Core/Model.js
@@ -94,7 +94,7 @@ var Model = module.exports = Class(function(){
       if (isString(config)) {
         config = {db_prefix: config};
       }
-      this.config = config || '';
+      this.config = config || {};
 
       //如果Model设置了实际数据库名，则需要将数据库名进行设置
       if(this.dbName) {