diff --git a/doc/RUN_IN_DOCKER.md b/doc/RUN_IN_DOCKER.md
index fd29d718b5a6390e0d2efbb1df94437d5a3d556d..e7b25362d113b18f6e779ccb9b92a3e3c8d13343 100644
--- a/doc/RUN_IN_DOCKER.md
+++ b/doc/RUN_IN_DOCKER.md
@@ -6,6 +6,8 @@
 
 Docker (GPU version requires nvidia-docker to be installed on the GPU machine)
 
+This document takes Python2 as an example to show how to run Paddle Serving in docker. You can also use Python3 to run related commands by replacing `python` with `python3`.
+
 ## CPU
 
 ### Get docker image
diff --git a/doc/RUN_IN_DOCKER_CN.md b/doc/RUN_IN_DOCKER_CN.md
index c6f31cac6b1e644d6ac1e52323164169830bddd5..3e84cf08c015b7fda0d957bf621173ec18c19498 100644
--- a/doc/RUN_IN_DOCKER_CN.md
+++ b/doc/RUN_IN_DOCKER_CN.md
@@ -6,6 +6,8 @@
 
 Docker（GPU版本需要在GPU机器上安装nvidia-docker）
 
+该文档以Python2为例展示如何在Docker中运行Paddle Serving，您也可以通过将`python`更换成`python3`来用Python3运行相关命令。
+
 ## CPU版本
 
 ### 获取镜像
diff --git a/tools/Dockerfile b/tools/Dockerfile
index a39ce5bb76e411edeb94766d0c9aae23c6e7e62f..69b9b8bec4be49d6d4b1a5d8eb3fe5550ac1fa15 100644
--- a/tools/Dockerfile
+++ b/tools/Dockerfile
@@ -3,6 +3,7 @@ FROM centos:7.3.1611
 RUN yum -y install wget && \
     yum -y install epel-release && yum -y install patchelf && \
     yum -y install gcc make python-devel && \
+    yum -y install python3 python3-devel && \
     yum clean all && \
     curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && \
     python get-pip.py && rm get-pip.py
diff --git a/tools/Dockerfile.gpu b/tools/Dockerfile.gpu
index 091f4a546b549a3dd53645e78ab49b1cd46bf5b3..a08bdf3daef103b5944df192fef967ebd9772b6c 100644
--- a/tools/Dockerfile.gpu
+++ b/tools/Dockerfile.gpu
@@ -6,6 +6,7 @@ RUN yum -y install wget && \
     yum -y install libSM-1.2.2-2.el7.x86_64 --setopt=protected_multilib=false && \
     yum -y install libXrender-0.9.10-1.el7.x86_64 --setopt=protected_multilib=false && \
     yum -y install libXext-1.3.3-3.el7.x86_64 --setopt=protected_multilib=false && \
+    yum -y install python3 python3-devel && \
     yum clean all && \
     curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && \
     python get-pip.py && rm get-pip.py && \