diff --git a/.gitmodules b/.gitmodules
index e283929c..7c3919db 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "thirdparty/admin-backend"]
 	path = thirdparty/admin-backend
 	url = https://github.com/esengine/admin-backend.git
+[submodule "extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension"]
+	path = extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension
+	url = https://github.com/esengine/cocos-ecs-extension.git
diff --git a/extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension b/extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension
new file mode 160000
index 00000000..54233b97
--- /dev/null
+++ b/extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension
@@ -0,0 +1 @@
+Subproject commit 54233b97733987d488b14342ed8a558fa1faa6f8