diff --git a/doc/fluid/beginners_guide/install/install_CentOS.md b/doc/fluid/beginners_guide/install/install_CentOS.md
index ed9a2a5bc2527f0dad5b615228ea76408f35dd71..82a762c132e4d9ac12b5d370c15c8c1db4090599 100644
--- a/doc/fluid/beginners_guide/install/install_CentOS.md
+++ b/doc/fluid/beginners_guide/install/install_CentOS.md
@@ -20,6 +20,15 @@
 
 
 
+* 请确保您已经正确安装nccl2，或者按照以下指令安装nccl2（这里提供的是CentOS 7，CUDA9，cuDNN7下nccl2的安装指令），更多版本的安装信息请参考NVIDIA[官方网站](https://developer.nvidia.com/nccl/nccl-download):
+
+ 
+      	wget http://developer.download.nvidia.com/compute/machine-learning/repos/rhel7/x86_64/nvidia-machine-learning-repo-rhel7-1.0.0-1.x86_64.rpm
+   		rpm -i nvidia-machine-learning-repo-rhel7-1.0.0-1.x86_64.rpm
+   		sudo apt-get install -y libnccl2=2.3.7-1+cuda9.0 libnccl-dev=2.3.7-1+cuda9.0
+   		yum update -y
+   		yum install -y libnccl-2.3.7-2+cuda9.0 libnccl-devel-2.3.7-2+cuda9.0 libnccl-static-2.3.7-2+cuda9.0
+
 ## 选择如何安装
 在CentOS的系统下我们提供4种安装方式：
 
diff --git a/doc/fluid/beginners_guide/install/install_Ubuntu.md b/doc/fluid/beginners_guide/install/install_Ubuntu.md
index 9e9cb7f774567a08a269207fbc86bcf8a657f374..305df6e19533973cb3b7790671ec3e73ca43b5b3 100644
--- a/doc/fluid/beginners_guide/install/install_Ubuntu.md
+++ b/doc/fluid/beginners_guide/install/install_Ubuntu.md
@@ -18,7 +18,12 @@
 	* *CUDA 工具包8.0配合cuDNN v7*
 	* *GPU运算能力超过1.0的硬件设备*
 
+* 请确保您已经正确安装nccl2，或者按照以下指令安装nccl2（这里提供的是ubuntu 16.04，CUDA9，cuDNN7下nccl2的安装指令），更多版本的安装信息请参考NVIDIA[官方网站](https://developer.nvidia.com/nccl/nccl-download):
 
+ 
+  		wget https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1604/x86_64/nvidia-machine-learning-repo-ubuntu1604_1.0.0-1_amd64.deb
+ 		dpkg -i nvidia-machine-learning-repo-ubuntu1604_1.0.0-1_amd64.deb`
+ 		sudo apt-get install -y libnccl2=2.3.7-1+cuda9.0 libnccl-dev=2.3.7-1+cuda9.0
 
 ## 选择如何安装
 在Ubuntu的系统下我们提供4种安装方式：