diff --git a/doc/CTR_PREDICTION.md b/doc/CTR_PREDICTION.md
index 7c8951cf841882087c0a9495d8915c2ac0e1e525..746b6360f3fb326f3a63561bab1a2163bf30da67 100755
--- a/doc/CTR_PREDICTION.md
+++ b/doc/CTR_PREDICTION.md
@@ -26,7 +26,7 @@
 
 第1) - 第5)步裁剪完毕后的模型网络配置如下：
 
-![Pruned CTR prediction network](doc/pruned-ctr-network.png)
+![Pruned CTR prediction network](pruned-ctr-network.png)
 
 
 整个裁剪过程具体说明如下：