diff --git a/.gitmodules b/.gitmodules
index 8087e23..6d137be 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -56,6 +56,3 @@
 [submodule "thingsboard"]
 	path = thingsboard
 	url = http://221.226.114.142:13000/THENG/thingsboard.git
-[submodule "hyf-backend"]
-	path = hyf-backend
-	url = http://221.226.114.142:13000/THENG/hyf-backend.git
diff --git a/docker/hyf-backend/dockerfile b/docker/hyf-backend/dockerfile
deleted file mode 100644
index e69de29..0000000
diff --git a/hyf-backend b/hyf-backend
deleted file mode 160000
index e308e9d..0000000
--- a/hyf-backend
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit e308e9d2f2eb35feac799ebc2aed9cf0983c01f6