diff --git a/packages/babel-plugin-jsx/README-zh_CN.md b/packages/babel-plugin-jsx/README-zh_CN.md
index a6d5de4..1d43d86 100644
--- a/packages/babel-plugin-jsx/README-zh_CN.md
+++ b/packages/babel-plugin-jsx/README-zh_CN.md
@@ -50,6 +50,14 @@ Default: `undefined`
 
 自定义元素
 
+#### mergeProps
+
+Type: `boolean`
+
+Default: `true`
+
+合并 class / style / onXXX handlers
+
 ## 表达式
 
 ### 内容
diff --git a/packages/babel-plugin-jsx/README.md b/packages/babel-plugin-jsx/README.md
index fca4cd0..6fcc121 100644
--- a/packages/babel-plugin-jsx/README.md
+++ b/packages/babel-plugin-jsx/README.md
@@ -50,6 +50,14 @@ Default: `undefined`
 
 configuring custom elements
 
+#### mergeProps
+
+Type: `boolean`
+
+Default: `true`
+
+merge static and dynamic class / style attributes / onXXX handlers
+
 ## Syntax
 
 ### Content