diff --git a/middleware/router.js b/middleware/router.js
index 97849d6..0d41a5f 100644
--- a/middleware/router.js
+++ b/middleware/router.js
@@ -10,21 +10,22 @@ export function createRouter() {
   return function (req, res, next) {
     let debug = this.get('debug')
     let dynamic = this.get('dynamic')
-    let _ctrl = dynamic ? 'index' : req.controller
-    let _Module = this.$load(_ctrl)
+    let name = dynamic ? 'index' : req.controller
+    let _module = this.$load(name)
+    let paths = req.path.concat()
 
     // 1. 先判断控制器是否存在
-    if (!_Module) {
-      return res.error(`Controller [${_ctrl}] not found`, 404)
+    if (!_module) {
+      return res.error(`Controller [${name}] not found`, 404)
     }
 
     // 2. 默认二级路由为index
-    if (req.path.length < 1 && dynamic === false) {
-      req.path.push('index')
+    if (paths.length < 1 && dynamic === false) {
+      paths.push('index')
     }
 
     // 3. 实例化控制器
-    _Module
+    _module
       .then(async ModuleController => {
         let ctrol, route, act
         let err = ''
@@ -50,20 +51,20 @@ export function createRouter() {
           }
 
           if (dynamic) {
-            return ctrol.indexAction.apply(ctrol, req.path)
+            return ctrol.indexAction.apply(ctrol, paths)
           } else {
-            route = req.path.shift()
+            route = paths.shift()
             act = route + 'Action'
 
             if (ctrol[act]) {
-              return ctrol[act].apply(ctrol, req.path)
+              return ctrol[act].apply(ctrol, paths)
             } else {
               err = new Error(`Action [${route}] not found`)
               err.status = 404
             }
           }
         } else {
-          err = new Error(`Controller [${_ctrl}] load error`)
+          err = new Error(`Controller [${name}] load error`)
           err.status = 500
         }