diff --git a/zh-cn/device-dev/kernel/kernel-small-basic-trans-semaphore.md b/zh-cn/device-dev/kernel/kernel-small-basic-trans-semaphore.md
index fb78120cfaa905d8824d928870e91dfe5f6bb112..29792644b50f139f558653e559567f0416d4134a 100644
--- a/zh-cn/device-dev/kernel/kernel-small-basic-trans-semaphore.md
+++ b/zh-cn/device-dev/kernel/kernel-small-basic-trans-semaphore.md
@@ -57,6 +57,7 @@
 运行示意图如下图所示:
 
 **图1** 小型系统信号量运作示意图
+
 ![zh-cn_image_0000001132774752](figures/zh-cn_image_0000001132774752.png)