diff --git a/backend/controller/ws.py b/backend/controller/ws.py
new file mode 100644
index 0000000..07c5aae
--- /dev/null
+++ b/backend/controller/ws.py
@@ -0,0 +1,14 @@
+from fastapi import FastAPI
+from fastapi.websockets import WebSocket
+
+from core.utils import get_system_info
+
+# websocket app
+ws_app = FastAPI()
+
+
+@ws_app.websocket("/ws")
+async def ws_func(ws: WebSocket):
+    await ws.accept()
+    while True:
+        await ws.send_json(get_system_info())
diff --git a/backend/core/utils.py b/backend/core/utils.py
index 697c282..b774c1f 100644
--- a/backend/core/utils.py
+++ b/backend/core/utils.py
@@ -1,3 +1,7 @@
+import random
+import time
+
+
 def list_to_tree(
     menus, parent_flag: str = "pid", children_key: str = "children"
 ) -> list:
@@ -24,3 +28,15 @@ def list_to_tree(
         else:
             arr.append(menu)
     return arr
+
+
+def get_system_info():
+    """获取系统信息"""
+    time.sleep(1)
+    return {
+        "usage": {
+            "cpu": f"{random.random() * 100: .2}",
+            "memory": f"{random.random() * 100: .2}",
+            "disk": f"{random.random() * 100: .2}",
+        }
+    }
diff --git a/backend/main.py b/backend/main.py
index 889a69d..6fd9d01 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -1,5 +1,6 @@
 from fastapi import FastAPI
 
+from controller.ws import ws_app
 from core.events import close_orm, init_orm
 from core.exceptions import exception_handlers
 from core.log import logger
@@ -14,6 +15,8 @@ app = FastAPI(
     exception_handlers=exception_handlers,
 )
 
+app.mount("/", ws_app)
+
 if __name__ == "__main__":
     import uvicorn
 
diff --git a/backend/mini.db-shm b/backend/mini.db-shm
new file mode 100644
index 0000000..fe9ac28
Binary files /dev/null and b/backend/mini.db-shm differ
diff --git a/backend/mini.db-wal b/backend/mini.db-wal
new file mode 100644
index 0000000..e69de29