diff --git a/index.js b/index.js
index 15568140ae..d05db9d308 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,5 @@
 import React from 'react';
 
-require('./style/index.less');
-
 const antd = {
   Affix: require('./components/affix'),
   Datepicker: require('./components/datepicker'),
diff --git a/scripts/demo.js b/scripts/demo.js
index d2a4d5d16a..fc03b41014 100644
--- a/scripts/demo.js
+++ b/scripts/demo.js
@@ -32,6 +32,7 @@ window.React = React;
 window.ReactDOM = ReactDOM;
 window['object-assign'] = require('object-assign');
 window['classnames'] = require('classnames');
+require('./importCss');
 
 antd.Datepicker.locale = {
   en_US: require('../components/datepicker/locale/en_US'),
diff --git a/scripts/prenpm.js b/scripts/prenpm.js
index f6b55cd9af..a9882a228a 100644
--- a/scripts/prenpm.js
+++ b/scripts/prenpm.js
@@ -6,8 +6,7 @@ var pkg = require('../package');
 var originalIndex = fs.readFileSync(path.join(cwd, 'lib/index.js'), 'utf-8');
 var newIndex = originalIndex
   .replace(/\/components\//g, '/')
-  .replace(/require\(\'\.\/package.json\'\)/g, "require('./package')")
-  .replace("require('./style/index.less')", "");
+  .replace(/require\(\'\.\/package.json\'\)/g, "require('./package')");
 fs.writeFileSync(path.join(cwd, 'lib/index.js'), newIndex, 'utf-8');
 fs.writeFileSync(
   path.join(cwd, 'lib/package.js'),