diff --git a/LocalReadMe.md b/LocalReadMe.md
index 375a2a599..4733dd32c 100644
--- a/LocalReadMe.md
+++ b/LocalReadMe.md
@@ -32,6 +32,13 @@
     然后在把//i.alicdn.com/artascope-font/20160419204543/font 
     cdn 地址改为../../fonts   
     13、*(前端)前端阿里云合并要注意事项 1 导师排行版 程序员排行版要去掉 在shixunsHome.js 上
-    14、*(前端)1、代码里面替换deucoder/public/favicon.ico
-        *(前端)2、无需build的话替换deucoder/public/react/public/favicon.ico
-        *(前端)3、无需build的话里面替换deucoder/public/react/build/favicon.ico           
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+    14、图片替换
+        一 替换网页游览器标签的小图标
+        *(前端)1、代码里面替换educoder/public/favicon.ico
+        *(前端)2、无需build的话替换educoder/public/react/public/favicon.ico
+        *(前端)3、无需build的话里面替换educoder/public/react/build/favicon.ico       
+        二 替换主页左上角图标
+         *(前端)1、educoder/public/images/educoder/headNavLogo.png
+        三 替换后端管理页面图标
+         *(前端)1、educoder/app/assets/images/logo.png
+                改动文件后还要执行rake assets:precompile
\ No newline at end of file
diff --git a/app/assets/images/logo.png b/app/assets/images/logo.png
index e740f87a1..5e2fd482d 100644
Binary files a/app/assets/images/logo.png and b/app/assets/images/logo.png differ
diff --git a/public/images/educoder/headNavLogo.png b/public/images/educoder/headNavLogo.png
index f5e4cb50c..5e2fd482d 100644
Binary files a/public/images/educoder/headNavLogo.png and b/public/images/educoder/headNavLogo.png differ