diff --git a/Software/Applications/Docker/Docker_安装和使用.md b/Software/Applications/Docker/Docker_安装和使用.md
index 90081ef..5bc36e2 100644
--- a/Software/Applications/Docker/Docker_安装和使用.md
+++ b/Software/Applications/Docker/Docker_安装和使用.md
@@ -3,6 +3,9 @@
 ## 安装
 
 ```sh
+# Ubuntu
+apt-get install docker.io
+# Arch Linux/Manjaro
 pacman -S docker
 ```