diff --git a/doc/templates/conf.py.cn.in b/doc/templates/conf.py.cn.in
index d134aad794b0a630dfc8395c484d111bc5462d9b..3ad6137c419bf979aef4d1adc0c7417014fbf6c4 100644
--- a/doc/templates/conf.py.cn.in
+++ b/doc/templates/conf.py.cn.in
@@ -21,10 +21,6 @@ import paddle.v2
 
 MarkdownParser = parser.CommonMarkParser
 AutoStructify = transform.AutoStructify
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-templates_path = ["@PADDLE_SOURCE_DIR@/doc_theme/templates"]
 
 # -- General configuration ------------------------------------------------
 
diff --git a/doc/templates/conf.py.en.in b/doc/templates/conf.py.en.in
index 1f057d2e839896722fedba6634607bcdf2fd893a..aa021320a95baca1adb5dedb9f43426425437c67 100644
--- a/doc/templates/conf.py.en.in
+++ b/doc/templates/conf.py.en.in
@@ -22,10 +22,6 @@ import paddle.v2
 
 MarkdownParser = parser.CommonMarkParser
 AutoStructify = transform.AutoStructify
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-templates_path = ["@PADDLE_SOURCE_DIR@/doc_theme/templates"]
 
 # -- General configuration ------------------------------------------------
 
diff --git a/doc_theme/static/css/override.css b/doc_theme/static/css/override.css
deleted file mode 100644
index 09ecff688b9a2dae3d834572217922640c529c5e..0000000000000000000000000000000000000000
--- a/doc_theme/static/css/override.css
+++ /dev/null
@@ -1,509 +0,0 @@
-* {
-    font-family:"Roboto","Lato","proxima-nova","Helvetica Neue",Arial,sans-serif;
-}
-body {
-    padding-top: 80px;
-    background-image: none !important;
-    font-family: Roboto;
-}
-a, a:focus, a:hover, a:visited {
-    color: #597cf1;
-}
-.site-header {
-    position: fixed;
-    top: 0;
-    width: 100%;
-    left: 0;
-    z-index: 99;
-    background: #333;
-    height: 80px;
-    display: -webkit-flex;
-    display: -ms-flex;
-    display: -o-flex;
-    display: flex;
-    flex-flow: row nowrap;
-    justify-content: space-between;
-    box-shadow: #ccc 0 3px 3px;
-}
-.site-header > div {
-    height: 80px;
-    display: inline-block;
-    background-color: #2f323a;
-    padding: 0 30px;
-}
-.site-header .site-logo {
-    line-height: 80px;
-    width: 290px;
-    flex: 0 1 290px;
-}
-.site-header .site-logo > a {
-    display: inline-block;
-    width: 230px;
-}
-.site-header .site-nav-links {
-    flex: 0 1 100%;
-}
-.site-header .site-nav-links .site-menu {
-    height: 30px;
-    line-height: 30px; 
-    font-size: 12px;
-    background: -webkit-linear-gradient(#282b33, #2f323a);
-    background: -o-linear-gradient(#282b33, #2f323a);
-    background: -moz-linear-gradient(#282b33, #2f323a);
-    background: linear-gradient(to left, #282b33, #2f323a);
-    margin-right: -30px;
-    padding-right: 30px;
-}
-.site-header .site-nav-links .site-menu .site-page-links {
-    display: inline-block;
-    float: right;
-    margin-right: 20px;
-}
-.site-header .site-nav-links .site-menu .site-page-links> li {
-    display: inline-block;
-    float: left;
-}
-.site-header .site-nav-links .site-menu .site-page-links > li > a {
-    color: #a7adbd;
-    display: inline-block;
-    height: 30px;
-    padding: 0 20px;
-    font-size: 12px;
-}
-.site-header .site-nav-links .site-menu .site-page-links > li:hover > a,
-.site-header .site-nav-links .site-menu .site-page-links > li.active > a {
-    background-color: #2f323a;
-    color: #bcc1d0;
-}
-.site-header .site-nav-links .site-menu .site-page-links > li.active > a {
-    font-weight: bold;
-}
-.site-header .site-nav-links .site-menu .fork-on-github {
-    color: #597cf1;
-    line-height: 30px;
-    display: inline-block;
-    padding: 0 0 0 20px;
-    float: right;
-    position: relative;
-}
-.site-header .site-nav-links .site-menu .fork-on-github .fa {
-    margin-right: 5px;
-    font-size: 16px;
-    vertical-align: middle;
-}
-.site-header .site-nav-links .site-menu .language-switcher {
-    height: 30px;
-    display: inline-block;
-    float: right;
-    line-height: 30px;
-    padding: 0 20px;
-    position: relative;
-}
-.site-header .site-nav-links .site-menu .language-switcher > a {
-    color: #a7adbd;
-}
-.site-header .site-nav-links .site-menu .language-switcher.open > a {
-    background-color: #24272f;
-    color: #bcc1d0;
-}
-.site-header .site-nav-links .site-menu .language-switcher .fa {
-    margin-left: 5px;
-}
-.site-header .site-nav-links .site-menu .language-switcher .fa-angle-down {
-    display: inline;
-}
-.site-header .site-nav-links .site-menu .language-switcher.open .fa-angle-down {
-    display: none;
-}
-.site-header .site-nav-links .site-menu .language-switcher .fa-angle-up {
-    display: none;
-}
-.site-header .site-nav-links .site-menu .language-switcher.open .fa-angle-up {
-    display: inline;
-}
-.site-header .site-nav-links .site-menu .fork-on-github:before,
-.site-header .site-nav-links .site-menu .language-switcher:before {
-    width: 1px;
-    height: 12px;
-    top: 9px;
-    background-color: #3a3d47;
-    left: 0;
-    display: inline-block;
-    position: absolute;
-    content: "";
-}
-.site-header .site-nav-links .site-menu .language-switcher .dropdown-menu {
-    display: none;
-    position: absolute;
-    box-shadow: #ccc 0 0 5px;
-    background-color: #fff;
-    width: 100%;
-    left: 0;
-    top: 30px;
-}
-.site-header .site-nav-links .site-menu .language-switcher .dropdown-menu > li {
-    line-height: 30px;
-    padding: 0 20px;
-}
-.site-header .site-nav-links .site-menu .language-switcher .dropdown-menu > li:hover {
-    background-color: #f7f8fe;
-}
-.site-header .site-nav-links .site-menu .language-switcher .dropdown-menu > li + li {
-    border-top: 1px solid #dedfe5;
-}
-.site-header .site-nav-links .site-menu .language-switcher .dropdown-menu > li > a {
-    color: #2f323a;
-}
-.site-header .site-nav-links .site-menu .language-switcher.open .dropdown-menu {
-    display: inline-block;
-}
-.site-header .site-nav-links .doc-module {
-    display: block;
-    height: 50px;
-    line-height: 50px;
-}
-.site-header .site-nav-links .doc-module > ul > li {
-    display: inline-block;
-    float: left;
-}
-.site-header .site-nav-links .doc-module > ul > li > a {
-    color: #c9cbd0;
-    font-size: 14px;
-    display: inline-block;
-    height: 50px;
-    line-height: 50px;
-    border-bottom: 2px solid transparent;
-    padding: 0 20px;
-}
-.site-header .site-nav-links .doc-module > ul > li:hover > a {
-    color: #fff;
-}
-.site-header .site-nav-links .doc-module > ul > li.current > a {
-    border-bottom-color: #fff;
-    color: #fff;
-}
-.site-header .site-nav-links .doc-module [role="search"]{
-    float: right;
-}
-.site-header .site-nav-links .doc-module [role="search"] input {
-    background-color: #3a3d47;
-    border-radius: 15px;
-    color: #a7adbd;
-    border: 1px solid transparent;
-    padding: 6px 15px;
-    width: 180px;
-    box-shadow: none;
-    transition: all .2s;
-    -webkit-transition: all .2s;
-    -moz-transition: all .2s;
-    -o-transition: all .2s;
-    background-repeat: no-repeat;
-    background-position: 145px center;
-    background-image: url("data:image/png;base64,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");
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-}
-.site-header .site-nav-links .doc-module [role="search"] input:focus {
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-}
-.site-header .site-nav-links .doc-module [role="search"] input:hover,
-.site-header .site-nav-links .doc-module [role="search"] input:focus {
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-.wy-nav-content p + h4 {
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diff --git a/doc_theme/static/images/PP_w.png b/doc_theme/static/images/PP_w.png
deleted file mode 100644
index bc58b0b458135773fcde5ee941ea095e3d4d07a0..0000000000000000000000000000000000000000
Binary files a/doc_theme/static/images/PP_w.png and /dev/null differ
diff --git a/doc_theme/static/js/paddle_doc_init.js b/doc_theme/static/js/paddle_doc_init.js
deleted file mode 100644
index 153ce30745a0a21097fb385f2d66f12e6c8d5be5..0000000000000000000000000000000000000000
--- a/doc_theme/static/js/paddle_doc_init.js
+++ /dev/null
@@ -1,31 +0,0 @@
-$(document).ready(function(){
-    $('.local-toc').on('click' ,'a.reference.internal', function (){
-        $('.local-toc li.active').removeClass('active');
-        $(this).parent('li').addClass('active');
-    });
-
-    if ($('.local-toc a:visible').length) {
-        $('.local-toc > ul').addClass('nav nav-stacked');
-        $('#doc-content').scrollspy({
-            target: '.local-toc'
-        });
-		$('.local-toc').perfectScrollbar();
-    } else {
-		$('.doc-content-wrap').css('margin-left', '-=50px');
-        $('.local-toc').remove();
-    }
-
-    if (!$('.doc-menu-vertical > ul > li.current > ul').length) {
-        $('.doc-content-wrap').css('margin-left', '-=240px');
-        $('.doc-menu-vertical').remove();
-        $('.local-toc').css('left', '0');
-    }
-
-	$('.doc-menu-vertical .toctree-l2').each(function (i, e){
-        $(e).toggleClass('has-child', !!$(e).find('ul').length);
-    });
-
-    $('.doc-menu-vertical').find('li.current').last().addClass('active');
-
-    $('.doc-menu-vertical').perfectScrollbar();
-});
diff --git a/doc_theme/templates/breadcrumbs.html b/doc_theme/templates/breadcrumbs.html
deleted file mode 100644
index 22f773a8e975dd901c5604b51cd9f2d67b3c9a1f..0000000000000000000000000000000000000000
--- a/doc_theme/templates/breadcrumbs.html
+++ /dev/null
@@ -1,24 +0,0 @@
-{# Support for Sphinx 1.3+ page_source_suffix, but don't break old builds. #}
-
-{% if page_source_suffix %} 
-{% set suffix = page_source_suffix %}
-{% else %}
-{% set suffix = source_suffix %}
-{% endif %}
-
-{% if meta is defined and 'github_url' in meta %}
-{% set display_github = True %}
-{% endif %}
-
-{% if meta is defined and 'bitbucket_url' in meta %}
-{% set display_bitbucket = True %}
-{% endif %}
-
-<div role="navigation" aria-label="breadcrumbs navigation">
-  <ul class="wy-breadcrumbs">
-      {% for doc in parents %}
-        <li><a href="{{ doc.link|e }}">{{ doc.title }}</a> > </li>
-      {% endfor %}
-    <li>{{ title }}</li>
-  </ul>
-</div>
diff --git a/doc_theme/templates/layout.html b/doc_theme/templates/layout.html
deleted file mode 100644
index 9fca69dc4e7f0827acfc755a97a662350214b90e..0000000000000000000000000000000000000000
--- a/doc_theme/templates/layout.html
+++ /dev/null
@@ -1,189 +0,0 @@
-{# TEMPLATE VAR SETTINGS #}
-{%- set url_root = pathto('', 1) %}
-{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
-{%- if not embedded and docstitle %}
-  {%- set titlesuffix = " &mdash; "|safe + docstitle|e %}
-{%- else %}
-  {%- set titlesuffix = "" %}
-{%- endif %}
-
-<!DOCTYPE html>
-<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
-<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
-<head>
-  <meta charset="utf-8">
-  {{ metatags }}
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  {% block htmltitle %}
-  <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
-  {% endblock %}
-
-  {# FAVICON #}
-  {% if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-  {% endif %}
-
-  {# CSS #}
-
-  {# OPENSEARCH #}
-  {% if not embedded %}
-    {% if use_opensearch %}
-      <link rel="search" type="application/opensearchdescription+xml" title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}" href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {% endif %}
-
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-  {% if not READTHEDOCS %}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-  {% endif %}
-
-  {% for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-  {% for cssfile in extra_css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {%- block linktags %}
-    {%- if hasdoc('about') %}
-        <link rel="author" title="{{ _('About these documents') }}"
-              href="{{ pathto('about') }}"/>
-    {%- endif %}
-    {%- if hasdoc('genindex') %}
-        <link rel="index" title="{{ _('Index') }}"
-              href="{{ pathto('genindex') }}"/>
-    {%- endif %}
-    {%- if hasdoc('search') %}
-        <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}"/>
-    {%- endif %}
-    {%- if hasdoc('copyright') %}
-        <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}"/>
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}"/>
-    {%- if parents %}
-        <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}"/>
-    {%- endif %}
-    {%- if next %}
-        <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}"/>
-    {%- endif %}
-    {%- if prev %}
-        <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}"/>
-    {%- endif %}
-  {%- endblock %}
-  {%- block extrahead %} 
-
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/perfect-scrollbar/0.6.14/css/perfect-scrollbar.min.css" type="text/css" />
-  <link rel="stylesheet" href="{{pathto('_static/css/override.css', 1)}}" type="text/css" />
-  <script>
-  var _hmt = _hmt || [];
-  (function() {
-    var hm = document.createElement("script");
-    hm.src = "//hm.baidu.com/hm.js?b9a314ab40d04d805655aab1deee08ba";
-    var s = document.getElementsByTagName("script")[0]; 
-    s.parentNode.insertBefore(hm, s);
-  })();
-  </script>
-
-  {% endblock %}
-
-  {# Keep modernizr in head - http://modernizr.com/docs/#installing #}
-  <script src="{{ pathto('_static/js/modernizr.min.js', 1) }}"></script>
-
-</head>
-
-<body class="wy-body-for-nav" role="document">
-
-  {% block extrabody %}
-  <header class="site-header">
-    <div class="site-logo">
-      <a href="/"><img src="{{pathto('_static/images/PP_w.png', 1)}}"></a>
-    </div>
-    <div class="site-nav-links">
-      <div class="site-menu">
-        <a class="fork-on-github" href="https://github.com/PaddlePaddle/Paddle" target="_blank"><i class="fa fa-github"></i>Fork me on Github</a>
-        <div class="language-switcher dropdown">
-          <a type="button" data-toggle="dropdown">
-            <span>English</span>
-            <i class="fa fa-angle-up"></i>
-            <i class="fa fa-angle-down"></i>
-          </a>
-          <ul class="dropdown-menu">
-            <li><a href="/doc_cn">中文</a></li>
-            <li><a href="/doc">English</a></li>
-          </ul>
-        </div>
-        <ul class="site-page-links">
-          <li><a href="/">Home</a></li>
-        </ul>
-      </div>
-      <div class="doc-module">
-        {%set modules = toctree(maxdepth=0, collapse=False, titles_only=True)%}
-        {{modules}}
-        {% include "searchbox.html" %}        
-      </div>
-    </div>
-  </header>
-  {% endblock %}
-  <div class="main-content-wrap">
-
-    {# SIDE NAV, TOGGLES ON MOBILE #}
-    <nav class="doc-menu-vertical" role="navigation">
-        {% block menu %}
-          {% set toctree = toctree(maxdepth=-1, collapse=False,titles_only=True, includehidden=True) %}
-          {{ toctree }}
-        {% endblock %}
-    </nav>
-    {% if False %}
-    <nav class="local-toc">{{ toc }}</nav>
-    {% endif %}
-    <section class="doc-content-wrap">
-
-      {% include "breadcrumbs.html" %}
-      {# PAGE CONTENT #}
-      <div class="wy-nav-content" id="doc-content">
-        <div class="rst-content">
-          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
-           <div itemprop="articleBody">
-            {% block body %}{% endblock %}
-           </div>
-          </div>
-          {% include "footer.html" %}
-        </div>
-      </div>
-
-    </section>
-
-  </div>
-  {% include "versions.html" %}
-
-  {% if not embedded %}
-
-    <script type="text/javascript">
-        var DOCUMENTATION_OPTIONS = {
-            URL_ROOT:'{{ url_root }}',
-            VERSION:'{{ release|e }}',
-            COLLAPSE_INDEX:false,
-            FILE_SUFFIX:'{{ '' if no_search_suffix else file_suffix }}',
-            HAS_SOURCE:  {{ has_source|lower }},
-            SOURCELINK_SUFFIX: ".txt",
-        };
-    </script>
-    {%- for scriptfile in script_files %}
-      <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
-    {%- endfor %}
-       
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-  {% if not READTHEDOCS %}
-    <script type="text/javascript" src="{{ pathto('_static/js/theme.js', 1) }}"></script>
-  {% endif %}
-  
-  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
-  <script src="https://cdn.jsdelivr.net/perfect-scrollbar/0.6.14/js/perfect-scrollbar.jquery.min.js"></script>
-  <script src="{{ pathto('_static/js/paddle_doc_init.js', 1) }}"></script>
-  {%- block footer %} {% endblock %}
-
-</body>
-</html>
diff --git a/doc_theme/templates/search.html b/doc_theme/templates/search.html
deleted file mode 100644
index 171ab915988db06bdf6bf88f8a7930d48f9e7bee..0000000000000000000000000000000000000000
--- a/doc_theme/templates/search.html
+++ /dev/null
@@ -1,52 +0,0 @@
-{#
-    basic/search.html
-    ~~~~~~~~~~~~~~~~~
-
-    Template for the search page.
-
-    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-#}
-{%- extends "layout.html" %}
-{% set title = _('Search') %}
-{% set script_files = script_files + ['_static/searchtools.js'] %}
-{% block footer %}
-  <script type="text/javascript">
-    jQuery(function() { Search.loadIndex("{{ pathto('searchindex.js', 1) }}"); });
-    jQuery('.doc-content-wrap > div[role="navigation"]').remove();
-    jQuery('.doc-content-wrap').css('padding-top', 0);
-  </script>
-  {# this is used when loading the search index using $.ajax fails,
-     such as on Chrome for documents on localhost #}
-  <script type="text/javascript" id="searchindexloader"></script>
-  {{ super() }}
-{% endblock %}
-{% block body %}
-  <noscript>
-  <div id="fallback" class="admonition warning">
-    <p class="last">
-      {% trans %}Please activate JavaScript to enable the search
-      functionality.{% endtrans %}
-    </p>
-  </div>
-  </noscript>
-
-  {% if search_performed %}
-    <h2>{{ _('Search Results') }}</h2>
-    {% if not search_results %}
-      <p>{{ _('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.') }}</p>
-    {% endif %}
-  {% endif %}
-  <div id="search-results">
-  {% if search_results %}
-    <ul>
-    {% for href, caption, context in search_results %}
-      <li>
-        <a href="{{ pathto(item.href) }}">{{ caption }}</a>
-        <p class="context">{{ context|e }}</p>
-      </li>
-    {% endfor %}
-    </ul>
-  {% endif %}
-  </div>
-{% endblock %}