diff --git a/README.md b/README.md
index c8c549a90..d636c0f41 100755
--- a/README.md
+++ b/README.md
@@ -1,24 +1,31 @@
 # Hello Minecraft! Launcher [![Build Status](https://travis-ci.org/huanghongxun/HMCL.svg?branch=master)](https://travis-ci.org/huanghongxun/HMCL)
-License is GPL v3, see http://www.gnu.org/licenses/gpl.html
+开源协议为GPL v3, 详情参见http://www.gnu.org/licenses/gpl.html
 
-## Introduction
+## 介绍
 
-This application is a Minecraft launcher that supports mod management, game modification, auto-installing Minecraft/Forge/LiteLoader/OptiFine, modpack manufacture, UI theme customization, and so on.
+HMCL是一个Minecraft启动器，支持Mod管理，游戏定制，自动安装，整合包制作，界面主题定制等功能。
+并且一天的使用次数在工作日时有40万左右、节假日有150万左右的使用次数，也就是说日活跃用户在10万以上。
+但是本项目的代码不够完善，希望有更多的人能加入HMCL的开发。
 
-This application has more than 100,000 users and would be opened more than 500,000 times per day.
+## 贡献
+如果你很想为本项目贡献代码，这里有一些要求：
+* 开发环境为Netbeans 8.1
+* 编译器为Java 1.8，通过retrolambda兼容Java 1.7，所以请不要使用Java 8的新API（如Stream）
+* 请不要修改`gradle`文件
 
-But the code of this app is not strong, I hope someone could join the development of this app and make this app stronger.
+## 代码
+* 包 `org.jackhuang.hellominecraft.util` 为HMCL和HMCSM的共用工具代码
+* 包 `org.jackhuang.hellominecraft.launcher` 包含了HMCL的界面以及逻辑代码
+* 包 `org.jackhuang.hellominecraft.launcher.core` 为HMCL的启动核心
+* 包 `org.jackhuang.hellominecraft.launcher.api` 是HMCL为了便于定制提供的API，暂不支持加载插件
+* 包 `org.jackhuang.hellominecraft.svrmgr` 为HMCSM的所有代码
+* 文件夹 `HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang` 包含了HMCL和HMCSM使用的语言文件
 
+由于包树已经相当清晰，因此不再赘述各包各类的用途。
 
-## Contribution
-If you really want to join the development, here's some requests.
-* The Development Environment is Netbeans 8.0.2 with plugin: Gradle Support.
-* The project is built on Java 1.8 using the retrolambda backporting to Java 1.7. So DO NOT use the libraries of Java 8 like Stream APIs.
-* DO NOT modify any file whose suffix is `gradle`.
-
-## Code tree
-* Package `hmc.util` contains all the utilities that HMCL and HMCSM depend on.
-* Package `hmc.launcher` contains HMCL ui, a few utility codes.
-* Package `hmc.launcher.core` contains all the Minecraft Launcher logic that the HMCL supports.
-* Package `hmc.svrmgr` contains all HMCSM logic.
-* Folder `HMCLAPI/src/main/resources/org/jackhuang/hellominecraft/lang` contains all the localization files that HMCL and HMCSM used. If you are good at translation, you could join the localization plan by opening a pull request.
+## 注意事项
+* 包 `org.jackhuang.hellominecraft.util.logging` 包含了经过精简的Apache License 2.0的Log4j项目的代码
+* 包 `com.google.gson` 为Google Gson项目Apache License 2.0的代码
+* 包 `org.jackhuang.hellominecraft.lookandfeel.ui` 包含了Sun Microsystems的NimbusLookAndFeel项目的部分LGPL代码
+* 所有Pull Request提交的代码均会被重写
+* 本项目的开源协议是GPL v3，因此包含LGPL和Apache License 2.0的代码是没有法律问题的