diff --git a/youtube_recall/README.cn.md b/youtube_recall/README.cn.md
index 22fa1ef94b5e891f760fc7726e112df91ef5d910..8885170a947de41286083a4c35df5956048158c4 100644
--- a/youtube_recall/README.cn.md
+++ b/youtube_recall/README.cn.md
@@ -42,7 +42,7 @@ Figure 1. 推荐系统框图
 
 下图展示了召回模型的网络结构:
 <p align="center">
-<img src="images/model_network.png" width="500" height="400" hspace='10'/> <br/>
+<img src="images/model_network.png" width="600" height="500" hspace='10'/> <br/>
 Figure 2. 召回模型网络结构
 </p>