diff --git a/.gitmodules b/.gitmodules
index b29b30f57..3b619568a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "Ubiquitous/Nuttx/nuttx"]
 	path = Ubiquitous/Nuttx/nuttx
 	url = https://gitlink.org.cn/wgzAIIT/incubator-nuttx.git
+[submodule "Ubiquitous/RT_Thread/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source"]
+	path = Ubiquitous/RT_Thread/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source
+	url = https://code.gitlink.org.cn/chunyexixiaoyu/kendryte-sdk-source.git
diff --git a/Ubiquitous/RT_Thread/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source b/Ubiquitous/RT_Thread/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source
new file mode 160000
index 000000000..02576ba67
--- /dev/null
+++ b/Ubiquitous/RT_Thread/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source
@@ -0,0 +1 @@
+Subproject commit 02576ba67e8797444f3ee3f34c625b5ed048e707