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diff --git a/document/tips-qrcode.png b/document/tips-qr-url.png
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diff --git a/help.md b/help.md
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+++ b/help.md
@@ -5,7 +5,22 @@ Copy the URL directly to share the Formation, or add a Bookmark to archives. You
 ![分享组队](document/tips-share.png)  
 你也可以使用浏览器扩展生成二维码来分享网址。  
 You can also share the URL in QR code by browser extensions.  
-![生成二维码](document/tips-qrcode.png)
+* 可以使用摄像头读取队伍二维码  
+You can use the camera to read the Formation QR code  
+![使用摄像头读取二维码](document/tips-qr-read.webp)  
+读取到的队伍会显示为链接  
+The read Formation appears as a link  
+![成功读取到二维码](document/tips-qr-read-found.png)  
+目前可以读取 | Currently can read:
+  1. 本程序格式的二维码  
+  This program format QR code  
+  ![PDF二维码](document/tips-qr-pdf.png)
+  1. 使用浏览器扩展生成本程序组队网址链接的二维码  
+  QR code of this program Formation URL which generated by browser extension.  
+  ![URL二维码](document/tips-qr-url.png)
+  1. PDC 的二维码  
+  PDC format QR code  
+  ![PDC二维码](document/tips-qr-pdc.webp)
 * 使用后退即可撤销上一次修改。  
 Use back to undo the last edit.  
 ![撤銷修改](document/tips-undo.png)