diff --git a/README.md b/README.md
index c6a88bfe..6b3c8505 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,16 @@ webpack-api-mocker dev support mock, configured in `mocker/index.js`.
 
 ```js
 const proxy = {
+  // Priority processing.
+  // apiMocker(app, path, option)
+  // This is the option parameter setting for apiMocker
+  _proxy: {
+    proxy: {
+      '/repos/*': 'https://api.github.com/',
+      '/:owner/:repo/raw/:ref/*': 'http://127.0.0.1:2018'
+    },
+    changeHost: true,
+  },
   'GET /api/user': {
     id: 1,
     username: 'kenny',
diff --git a/example/webpack/mocker/index.js b/example/webpack/mocker/index.js
index b1cba074..40e02289 100644
--- a/example/webpack/mocker/index.js
+++ b/example/webpack/mocker/index.js
@@ -5,6 +5,13 @@ const delay = require('../../../utils/delay');
 const noProxy = process.env.NO_PROXY === 'true';
 
 const proxy = {
+  // Priority processing.
+  _proxy: {
+    proxy: {
+      '/repos/*': 'https://api.github.com/',
+    },
+    changeHost: true,
+  },
   'GET /api/:owner/:repo/raw/:ref/(.*)': (req, res) => {
     const { owner, repo, ref } = req.params;
     // http://localhost:8081/api/admin/webpack-mock-api/raw/master/add/ddd.md
@@ -19,7 +26,7 @@ const proxy = {
     });
   },
   'GET /api/userinfo/:id': (req, res) => {
-    console.log('---->', req.params)
+    console.log('-1--->', req.params)
     return res.json({
       id: 1,
       username: 'kenny',
@@ -85,8 +92,8 @@ const proxy = {
   //   }
   // },
   'DELETE /api/user/:id': (req, res) => {
-    console.log('---->', req.body)
-    console.log('---->', req.params.id)
+    console.log('--2-->', req.body)
+    console.log('--3-->', req.params.id)
     res.send({ status: 'ok', message: '删除成功！' });
   }
 }
diff --git a/utils/delay.js b/utils/delay.js
index 2eada261..7380f891 100644
--- a/utils/delay.js
+++ b/utils/delay.js
@@ -3,7 +3,7 @@ module.exports = function (proxy, timer = 0) {
   const mockApi = {};
   Object.keys(proxy).forEach(function (key) {
     const result = proxy[key];
-    if (Object.prototype.toString.call(result) === '[object String]' && /^http/.test(result) || timer === 0) {
+    if (Object.prototype.toString.call(result) === '[object String]' && /^http/.test(result) || key === '_proxy' || timer === 0) {
       mockApi[key] = proxy[key];
     } else {
       mockApi[key] = function (req, res) {