diff --git a/package.json b/package.json
index 5ea5a58..7ffc296 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "main": "index.js",
   "scripts": {
     "dev": "webpack-dev-server --mode development --progress --hot",
-    "build": "rm -rf dist && NODE_ENV=production webpack --mode production --progress && cp -R public/* ./dist/ "
+    "build": "rm -rf dist && NODE_ENV=production webpack --mode production --progress && cp -R public/* ./dist/ && rm -rf dist/themes.bundle.js"
   },
   "author": "Godfery <hiyangguo@qq.com>",
   "license": "MIT",
diff --git a/src/index.js b/src/index.js
index 920b893..700f94b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -3,9 +3,6 @@ import ReactDOM from 'react-dom';
 
 // style
 import './less/index.less';
-import './less/themes/green.less';
-import './less/themes/red.less';
-import './less/themes/yellow.less';
 
 import App from './App';
 
diff --git a/src/themes.js b/src/themes.js
new file mode 100644
index 0000000..dbbfce8
--- /dev/null
+++ b/src/themes.js
@@ -0,0 +1,3 @@
+import './less/themes/green.less';
+import './less/themes/red.less';
+import './less/themes/yellow.less';
\ No newline at end of file
diff --git a/webpack.config.js b/webpack.config.js
index b993557..1d61f80 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -4,7 +4,6 @@ const webpack = require('webpack');
 const ExtractTextPlugin = require('extract-text-webpack-plugin');
 const HtmlwebpackPlugin = require('html-webpack-plugin');
 
-const { STYLE_DEBUG } = process.env;
 // 主题路径
 const THEME_PATH = './src/less/themes';
 
@@ -41,7 +40,8 @@ module.exports = {
     port: 3201
   },
   entry: {
-    app: './src/index.js'
+    app: './src/index.js',
+    themes: './src/themes.js'
   },
   output: {
     filename: '[name].bundle.js?[hash]',
@@ -87,8 +87,8 @@ module.exports = {
     new HtmlwebpackPlugin({
       title: 'webpack 多主题打包演示',
       template: 'src/index.html',
-      inject: true
+      inject: true,
+      excludeChunks: ['themes']
     })
-  ],
-  devtool: STYLE_DEBUG === 'SOURCE' && 'source-map'
+  ]
 };