diff --git a/README.cn.md b/README.cn.md
new file mode 100644
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--- /dev/null
+++ b/README.cn.md
@@ -0,0 +1,89 @@
+# appetizer-toolkit [![Build Status](https://travis-ci.org/appetizerio/appetizer-toolkit.svg?branch=master)](https://travis-ci.org/appetizerio/appetizer-toolkit) [![Windows Build](https://ci.appveyor.com/api/projects/status/github/appetizerio/appetizer-toolkit)](https://ci.appveyor.com/project/mingyuan-xia/appetizer-toolkit)
+`appetizer-toolkit` 是 [Appetizer](https://www.appetizer.io) 的核心功能，它提供了如下功能:
+* 从单台设备录制屏幕触碰事件，在多台设备上重放（需要屏幕横宽比一致）
+* 同时控制多台设备（例如, 运行一个 shell 命令，安装 apk 等）
+* 将一台设备的屏幕触碰事件，镜像操作到多台设备上（需要屏幕横宽比一致）
+
+`appetizer-toolkit` 是一个命令行工具，能够运行在 Windows 7+，MacOS Mavericks+ 和 Linux 操作系统上。一同提供的还包括 [Python SDK](https://github.com/appetizerio/appetizer-toolkit-py) 和 [Nodejs SDK](https://github.com/appetizerio/appetizer-toolkit-js)。 `appetizer-toolkit` 要求 `adb` 已添加到 `PATH` 环境变量上.
+
+欢迎提交关于 bug，功能和特性的 issues 以及 Pull requests。
+
+## 安装
+不同系统的可执行文件可以在如下文件夹下找到， MacOS 系统的在 `darwin/` 文件夹下， Windows 系统的在 `win32/` 文件夹下， Ubuntu Fedora 和 CentOS 系统的在 `linux/` 文件夹下。 可以将路径添加到 `PATH` 下全局运行。 Linux 和 MacOS 需要在64位环境下运行，Windows 可以在32位环境下运行（兼容64位环境)
+
+```
+用法: appetizer [-h] {version,trace,adb,devices,plan} ...
+
+参数说明:
+  {version,trace,adb,devices,plan}
+                        说明
+    version             显示版本并退出程序
+    trace               录制或重放触屏事件
+    adb                 控制本地 adb
+    devices             控制设备
+    plan                运行一个测试计划文件
+
+可选参数:
+  -h, --help            显示帮助说明并退出程序
+
+```
+
+## 录制和重放
+录制或重放触屏事件，输入 `appetizer trace`:
+```
+用法: appetizer trace [-h] {info,replay,record} ...
+
+参数说明:
+  {info,replay,record}  操作
+    info                获取录制文件的信息
+    replay              在若干设备上重放录制文件的操作
+    record              录制触屏操作
+
+可选参数:
+  -h, --help            显示帮助说明并退出程序
+```
+
+录制和重放的演示：
+[![Record and replay](https://i.vimeocdn.com/video/583660790_640.jpg)](http://www.bilibili.com/video/av6725203/index_2.html)
+
+## 控制多设备和镜像操作
+同时控制多台设备，输入 `appetizer devices`:
+```
+用法: appetizer devices [-h]
+                                           {list,screenshot,mirror,control}
+                                           ...
+
+参数说明:
+  {list,screenshot,mirror,control}
+                        在设备上的操作
+    list                显示连接的设备列表
+    screenshot          截屏
+    mirror              实时将一台设备的屏幕触碰事件，镜像到多台设备上
+    control             控制设备
+
+可选参数:
+  -h, --help            显示帮助说明并退出程序
+```
+
+实时将一台设备的屏幕触碰事件，镜像到多台设备上的演示：
+[![mirroring](https://i.vimeocdn.com/video/585120374_640.jpg)](http://www.bilibili.com/video/av6725203/index_3.html)
+
+## ADB 相关
+Android SDK 的 `adb` 是 `appetizer-toolkit` 的必要依赖。toolkit 本身可以检测是否有 adb 二进制环境并且可以控制 adb server。
+```
+用法: appetizer adb [-h]
+                                       
+                                       {check-server,start-server,kill-server,detectadb}
+                                       ...
+
+参数说明:
+  {check-server,start-server,kill-server,detectadb}
+                        在 adb server 上的操作
+    check-server        确认 adb server 的状态
+    start-server        启动 adb server
+    kill-server         杀死 adb server 进程
+    detectadb           检测 adb 路径
+
+可选参数:
+  -h, --help            显示帮助说明并退出程序
+```
diff --git a/README.md b/README.md
index 0e28e53..250d6b0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
 # appetizer-toolkit [![Build Status](https://travis-ci.org/appetizerio/appetizer-toolkit.svg?branch=master)](https://travis-ci.org/appetizerio/appetizer-toolkit) [![Windows Build](https://ci.appveyor.com/api/projects/status/github/appetizerio/appetizer-toolkit)](https://ci.appveyor.com/project/mingyuan-xia/appetizer-toolkit)
+[中文说明](./READNE.cn.md)
+
 `appetizer-toolkit` is the core of [Appetizer](https://www.appetizer.io), which provides the ability to:
 * record touchscreen events from one device and replay to many (aspect ratios must be the same)
 * control multiple devices concurrently (e.g., run a shell command, install an app, etc.)
@@ -9,7 +11,7 @@
 Please submit issues for bug reports, enhancements and feature requests. Pull requests are welcomed too.
 
 ## Installation
-The executable file can be found in the `darwin/` for macOS, `win32/` for Windows and `linux/` for Ubuntu, Fedora and Centos. You might want to add to PATH to use the tool globally. Linux and macOS build are both 64-bit and Windows build is 32-bit (compatible with 64-bit as WOW)
+The executable file can be found in the `darwin/` for MacOS, `win32/` for Windows and `linux/` for Ubuntu, Fedora and CentOS. You might want to add to PATH to use the tool globally. Linux and MacOS build are both 64-bit and Windows build is 32-bit (compatible with 64-bit as WOW)
 
 ```
 usage: appetizer [-h] {version,trace,adb,devices,plan} ...
@@ -43,6 +45,7 @@ optional arguments:
   -h, --help            show this help message and exit
 ```
 
+Record and replay demo:
 [![Record and replay](https://i.vimeocdn.com/video/583660790_640.jpg)](https://vimeo.com/176421640)
 
 ## Control Multiple Devices and Mirror Touchscreen Events
@@ -65,7 +68,7 @@ optional arguments:
   -h, --help            show this help message and exit
 ```
 
-Mirror the touchscreen events from one device to many in real-time.
+Mirror the touchscreen events from one device to many in real-time demo:
 [![mirroring](https://i.vimeocdn.com/video/585120374_640.jpg)](https://vimeo.com/176421482)
 
 ## ADB related