diff --git a/docs/setup_by_centos7.rst b/docs/setup_by_centos7.rst
index c6a33d82dc0b5a83fd6bab6ae9d319faf6dbeff4..036e686d801d753d82ea5a94d07d8c3106ef5234 100644
--- a/docs/setup_by_centos7.rst
+++ b/docs/setup_by_centos7.rst
@@ -63,10 +63,8 @@ CentOS 7 安装文档
     $ yum -y install nginx
     $ systemctl enable nginx
 
-    # 下载编译 Python3.6.1
-    $ wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
-    $ tar xvf Python-3.6.1.tar.xz  && cd Python-3.6.1
-    $ ./configure && make && make install
+    # 安装 Python3.6
+    $ yum -y install python36 python3-devel
 
     # 配置并载入 Python3 虚拟环境
     $ cd /opt
diff --git a/docs/setup_by_ubuntu.rst b/docs/setup_by_ubuntu.rst
index b33f81d6077271c5afb4878a8e11009cb4e81840..d33d7fa52ccfd1c1bb7d62b941e0c705b41d0948 100644
--- a/docs/setup_by_ubuntu.rst
+++ b/docs/setup_by_ubuntu.rst
@@ -30,13 +30,13 @@
     $ apt-get install language-pack-zh-hans
     $ echo 'LANG="zh_CN.UTF-8"' > /etc/default/locale
 
-**1.2 编译安装**
+**1.2 安装 Python3.6**
 
 ::
 
-    $ wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
-    $ tar xvf Python-3.6.1.tar.xz  && cd Python-3.6.1
-    $ ./configure && make && make install
+    $ add-apt-repository ppa:jonathonf/python-3.6 -y
+    $ apt-get update
+    $ apt-get -y install python3.6 python3.6-dev python3.6-venv
 
 **1.3 建立 Python 虚拟环境**
 
diff --git a/docs/step_by_step.rst b/docs/step_by_step.rst
index 73cf4debff8bde5db8fe070fd0af553a86d928f7..9db2adc139b591a22f08ba0ab3ec33b6355908e2 100644
--- a/docs/step_by_step.rst
+++ b/docs/step_by_step.rst
@@ -48,17 +48,11 @@
 
     $ yum -y install wget sqlite-devel xz gcc automake zlib-devel openssl-devel epel-release git
 
-Yum 加速设置请参考 <http://mirrors.163.com/.help/centos.html>
-
-**1.2 编译安装**
+**1.2 安装 Python3.6**
 
 ::
 
-    $ wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
-    $ tar xvf Python-3.6.1.tar.xz  && cd Python-3.6.1
-    $ ./configure && make && make install
-
-    # 这里必须执行编译安装，否则在安装 Python 库依赖时会有麻烦...
+    $ yum -y install python36 python3-devel
 
 **1.3 建立 Python 虚拟环境**