diff --git a/install/mindspore_cpu_install.md b/install/mindspore_cpu_install.md
index 9631cb1b79b628bd2c43016bf27d5f1b7fa4c174..c2ae095a56dd147d9eaac1e387f41cf6c4da2106 100644
--- a/install/mindspore_cpu_install.md
+++ b/install/mindspore_cpu_install.md
@@ -1,6 +1,6 @@
 # 安装MindSpore
 
-本文档介绍如何在CPU的环境上快速安装MindSpore。
+本文档介绍如何在CPU环境的Ubuntu系统上快速安装MindSpore。
 
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diff --git a/install/mindspore_cpu_install_en.md b/install/mindspore_cpu_install_en.md
index 9f82edaf36b95270e7d913949b5a07683117022b..1be4c72fd36d6f8c95135dfb00951778cac18669 100644
--- a/install/mindspore_cpu_install_en.md
+++ b/install/mindspore_cpu_install_en.md
@@ -1,6 +1,6 @@
 # MindSpore Installation Guide
 
-This document describes how to quickly install MindSpore on a CPU environment.
+This document describes how to quickly install MindSpore on a Ubuntu system with a CPU environment.
 
 <!-- TOC -->