diff --git a/packages/rax-plugin-app/package.json b/packages/rax-plugin-app/package.json
index 85788bc774..23c295a01f 100644
--- a/packages/rax-plugin-app/package.json
+++ b/packages/rax-plugin-app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rax-plugin-app",
-  "version": "0.1.0-2",
+  "version": "0.1.0-3",
   "description": "rax app base plugins",
   "license": "BSD-3-Clause",
   "main": "src/index.js",
diff --git a/packages/rax-plugin-app/src/config/web/getBase.js b/packages/rax-plugin-app/src/config/web/getBase.js
index bb84c54132..051cbc3bac 100644
--- a/packages/rax-plugin-app/src/config/web/getBase.js
+++ b/packages/rax-plugin-app/src/config/web/getBase.js
@@ -16,8 +16,7 @@ const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
 const getWebpackBase = require('../getWebpackBase');
 
 module.exports = (context) => {
-  const { rootDir, userConfig } = context;
-  const { publicPath } = userConfig;
+  const { rootDir } = context;
 
   const config = getWebpackBase(context);
 
@@ -85,7 +84,6 @@ module.exports = (context) => {
   config.plugin('document')
     .use(UniversalDocumentPlugin, [{
       rootDir,
-      publicPath,
       path: 'src/document/index.jsx',
       render: serverRender.renderToString,
     }]);
diff --git a/packages/rax-plugin-app/src/index.js b/packages/rax-plugin-app/src/index.js
index e96d06eb0c..ee8a191822 100644
--- a/packages/rax-plugin-app/src/index.js
+++ b/packages/rax-plugin-app/src/index.js
@@ -4,7 +4,7 @@ const defaultUserConfig = require('./config/defaultUserConfig');
 
 module.exports = ({ chainWebpack, registerConfig, context, onHook }, options = {}) => {
   // set default config
-  context.userConfig = deepmerge(context.userConfig, defaultUserConfig);
+  context.userConfig = deepmerge(defaultUserConfig, context.userConfig);
 
   const { targets = [] } = options;
 
diff --git a/packages/rax-plugin-app/src/plugins/UniversalDocumentPlugin.js b/packages/rax-plugin-app/src/plugins/UniversalDocumentPlugin.js
index 25217d6e9d..47470f0ffe 100644
--- a/packages/rax-plugin-app/src/plugins/UniversalDocumentPlugin.js
+++ b/packages/rax-plugin-app/src/plugins/UniversalDocumentPlugin.js
@@ -17,12 +17,13 @@ module.exports = class UniversalDocumentPlugin {
     }
 
     this.rootDir = options.rootDir ? options.rootDir : process.cwd();
-    this.publicPath = options.publicPath ? options.publicPath : '/';
     this.documentPath = options.path ? options.path : 'src/document/index.jsx';
   }
 
   apply(compiler) {
     compiler.hooks.emit.tapAsync('UniversalDocumentPlugin', (compilation, callback) => {
+      const { publicPath } = compilation.outputOptions;
+
       const filename = path.resolve(this.rootDir, this.documentPath);
       if (!existsSync(filename)) throw new Error(`File ${filename} is not exists, please check.`);
 
@@ -37,7 +38,7 @@ module.exports = class UniversalDocumentPlugin {
 
       // get document html string
       const source = this.render(require('rax').createElement(documentElement, {
-        publicPath: this.publicPath,
+        publicPath,
         styles: [],
         scripts: ['web/index.js'],
       }));