diff --git a/docs/.vuepress/public/images/digital.png b/docs/.vuepress/public/images/digital.png
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diff --git a/docs/.vuepress/public/images/ota.png b/docs/.vuepress/public/images/ota.png
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diff --git a/docs/.vuepress/public/images/wmesh.png b/docs/.vuepress/public/images/wmesh.png
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diff --git a/docs/README.md b/docs/README.md
index a038386..7d3e7de 100755
--- a/docs/README.md
+++ b/docs/README.md
@@ -49,7 +49,7 @@ npm i pandora --save
 
   <div class="item">
     <div class="col img">
-      <img src="https://img.alicdn.com/tfs/TB1Bl0YbpYqK1RjSZLeXXbXppXa-1212-924.png" />
+      <img src="images/wmesh.png" width=450/>
     </div>
     <div class="col">
       <h3>无线自组网络，复杂环境下数据传输得心应手</h3>
@@ -67,13 +67,13 @@ npm i pandora --save
       </p>
     </div>
     <div class="col img">
-      <img src="https://img.alicdn.com/tfs/TB17_lYbCzqK1RjSZFHXXb3CpXa-1128-817.png" />
+      <img src="images/ota.png" width=480 />
     </div>
   </div>
 
    <div class="item">
     <div class="col img">
-      <img src="https://img.alicdn.com/tfs/TB1Bl0YbpYqK1RjSZLeXXbXppXa-1212-924.png" />
+      <img src="images/digital.png" width=400 />
     </div>
     <div class="col">
       <h3>智能化感联知控，帮助工厂数字化转型升级</h3>