diff --git a/README.md b/README.md
index a0cdf57f..c5842705 100644
--- a/README.md
+++ b/README.md
@@ -59,11 +59,11 @@
     * 订阅物模型、设备升级、时钟同步相关Mqtt主题
 
 ### 六、项目目录
-&nbsp;&nbsp;&nbsp;&nbsp; spring-boot ----------------------------------------------------- 后端<br/>
+&nbsp;&nbsp;&nbsp;&nbsp; spring-boot ---------------------------------------------------- 后端<br/>
 &nbsp;&nbsp;&nbsp;&nbsp; vue ------------------------------------------------------------- 前端<br />
 &nbsp;&nbsp;&nbsp;&nbsp; docker ---------------------------------------------------------- docker部署文件<br />
 &nbsp;&nbsp;&nbsp;&nbsp; sdk -------------------------------------------------------------- 硬件SDK<br />
-&nbsp;&nbsp;&nbsp;&nbsp; download -------------------------------------------------------- 工具下载<br />
+&nbsp;&nbsp;&nbsp;&nbsp; download ------------------------------------------------------- 工具下载<br />
 
 
 ### 七、相关文档