diff --git a/README.md b/README.md
index 59e71a0..a9da1bb 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,30 @@ IP.java 类仅适用于免费版dat与收费版每周每日版本的dat文件；
 IPExt.java 类适用于收费版每日版本的datx文件；
 ```
 区县库代码请查看 https://github.com/17mon/quxianku/
+
+-------------------------------------------------------------
+(English Version)
+java
+====
+
+17mon IP Library Parse Code
+
+## How to use
+```java
+
+IP.enableFileWatch = true; // Default value is false. If IP.enableFileWatch equals true, it automatically checks changes of files in IP library and reloads data.
+
+IP.load("IP library's local absolute path");
+
+IP.find("8.8.8.8");//return String array ["GOOGLE","GOOGLE"]
+
+```
+
+IPExt can be used in the same way as IP. IPExt is only used for analyzing .datx files.
+
+##Note:
+```java
+IP.java is only applicable to Free version of dat, and daily or weekly version dat files in paid version;
+IPExt.java is applicable to daily version datx files in paid version;
+```
+Code for IP district library: https://github.com/17mon/quxianku/