diff --git a/README.md b/README.md
index 835b645..0269924 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,17 @@
 ## Description
 vue2 ruler tool
 
+## Feature
+- dynamic size
+- mouse events(click, move)
+- orientation switch(horizontal, vertical)
+
 ## Installation
 ```
 npm install dsw-ruler
 ```
 
+### Usage
 ### Template
 ```
 <template>