diff --git a/.gitmodules b/.gitmodules
index 1ef79ea09..3a8d8eab7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "Ubiquitous/Nuttx/apps"]
 	path = Ubiquitous/Nuttx/apps
 	url = https://gitlink.org.cn/wgzAIIT/incubator-nuttx-apps.git
+[submodule "Ubiquitous/Nuttx/nuttx"]
+	path = Ubiquitous/Nuttx/nuttx
+	url = https://gitlink.org.cn/wgzAIIT/incubator-nuttx.git
diff --git a/Ubiquitous/Nuttx/nuttx b/Ubiquitous/Nuttx/nuttx
new file mode 160000
index 000000000..3fede4209
--- /dev/null
+++ b/Ubiquitous/Nuttx/nuttx
@@ -0,0 +1 @@
+Subproject commit 3fede42098e5883f336d846ac30edfe749899494