diff --git a/.gitmodules b/.gitmodules
index 370934c08..bb6b8eda3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,6 @@
 [submodule "Ubiquitous/RT_Thread/rt-thread"]
 	path = Ubiquitous/RT_Thread/rt-thread
 	url = https://code.gitlink.org.cn/chunyexixiaoyu/rt-thread.git
-[submodule "Ubiquitous/RT_Thread/bsp/k210/kendryte-sdk/kendryte-sdk-source"]
+[submodule "Ubiquitous/RT_Thread/aiit_board/k210/kendryte-sdk/kendryte-sdk-source"]
 	path = Ubiquitous/RT_Thread/aiit_board/k210/kendryte-sdk/kendryte-sdk-source
 	url = https://code.gitlink.org.cn/chunyexixiaoyu/kendryte-sdk-source.git
diff --git a/Ubiquitous/RT_Thread/README.md b/Ubiquitous/RT_Thread/README.md
index c08ddec90..692d331b3 100644
--- a/Ubiquitous/RT_Thread/README.md
+++ b/Ubiquitous/RT_Thread/README.md
@@ -27,8 +27,12 @@ Rt-thread/rt-thread 使用 RT-Thread 作为系统基础设施，提供底层支
 运行以下指令下载代码、编译运行：
 
 ```
-# 进入xiuos目录下载更新子模块(包括RT-thread 和 K210 SDK)
-git submodule update --init --recursive
+# 下载代码
+# 进入xiuos目录下载更新子模块(包括RT-thread 和 K210 SDK（如果用到K210 需更新kendryte-sdk）)执行以下三条命令或者直接执行当前目录下的download.sh脚本命令
+git submodule init
+git submodule update Ubiquitous/RT_Thread/rt-thread
+git submodule update Ubiquitous/RT_Thread/aiit_board/k210/kendryte-sdk/kendryte-sdk-source
+
 # 进入 xiuos/Ubiquitous/Rt-thread/aiit_board/stm32f407_core 配置 Kconfig
 scons --menuconfig
 # 编译
@@ -40,4 +44,3 @@ st-flash write rtthread.bin 0x8000000
 同时也可以支持windows开发环境进行上述命令进行编译，需安装env插件，详细介绍可以参照[rt-thread官方资料](https://www.rt-thread.org/document/site/#/rt-thread-version/rt-thread-standard/application-note/setup/standard-project/an0017-standard-project?id=%e4%bd%bf%e7%94%a8-env-%e5%88%9b%e5%bb%ba-rt-thread-%e9%a1%b9%e7%9b%ae%e5%b7%a5%e7%a8%8b
 )。
 
-
diff --git a/Ubiquitous/RT_Thread/build.sh b/Ubiquitous/RT_Thread/build.sh
new file mode 100644
index 000000000..6be5951ba
--- /dev/null
+++ b/Ubiquitous/RT_Thread/build.sh
@@ -0,0 +1,6 @@
+#切换到root目录
+cd ../../
+echo $(pwd)
+git submodule init
+git submodule update Ubiquitous/RT_Thread/rt-thread
+git submodule update Ubiquitous/RT_Thread/aiit_board/k210/kendryte-sdk/kendryte-sdk-source
\ No newline at end of file