diff --git a/.gitmodules b/.gitmodules
index 7a182c41d..59ee5c1d2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,9 +7,12 @@
 [submodule "Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source"]
 	path = Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-riscv64-board/kendryte-sdk/kendryte-sdk-source
 	url = https://code.gitlink.org.cn/chunyexixiaoyu/kendryte-sdk-source.git
-[submodule "Ubiquitous/Nuttx_Fusion_XiUOS/apps"]
-	path = Ubiquitous/Nuttx_Fusion_XiUOS/apps
-	url = https://code.gitlink.org.cn/wgzAIIT/incubator-nuttx-apps.git
 [submodule "Ubiquitous/XiZi/fs/lwext4/lwext4_submodule"]
 	path = Ubiquitous/XiZi/fs/lwext4/lwext4_submodule
 	url = https://gitlink.org.cn/xuos/lwext4_filesystem_support_XiUOS.git
+[submodule "Ubiquitous/Nuttx_Fusion_XiUOS/nuttx"]
+	path = Ubiquitous/Nuttx_Fusion_XiUOS/nuttx
+	url = https://code.gitlink.org.cn/wgzAIIT/incubator-nuttx.git
+[submodule "Ubiquitous/Nuttx_Fusion_XiUOS/apps"]
+	path = Ubiquitous/Nuttx_Fusion_XiUOS/apps
+	url = https://code.gitlink.org.cn/wgzAIIT/incubator-nuttx-apps.git
diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/nuttx b/Ubiquitous/Nuttx_Fusion_XiUOS/nuttx
new file mode 160000
index 000000000..3fede4209
--- /dev/null
+++ b/Ubiquitous/Nuttx_Fusion_XiUOS/nuttx
@@ -0,0 +1 @@
+Subproject commit 3fede42098e5883f336d846ac30edfe749899494