diff --git a/package.json b/package.json
index 89da04a..ca306b3 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
     "passport": "^0.7.0",
     "passport-kakao": "^1.0.1",
     "prisma": "^6.1.0",
+    "socket.io": "^4.8.1",
     "swagger-jsdoc": "^6.2.8",
     "swagger-ui-express": "^5.0.1",
     "ws": "^8.18.1"
diff --git a/src/app.ts b/src/app.ts
index b6d4691..39155b5 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -18,6 +18,7 @@ import cookieParser from 'cookie-parser';
 import {prisma} from './db.config.js';
 import {RegisterRoutes} from './routers/tsoaRoutes.js';
 import {authRouter} from './routers/auth.router.js';
+import './ws-study-status-server.js';
 
 dotenv.config();
 
diff --git a/src/ws-study-status-server.ts b/src/ws-study-status-server.ts
new file mode 100644
index 0000000..881b03c
--- /dev/null
+++ b/src/ws-study-status-server.ts
@@ -0,0 +1,33 @@
+import express, {Express} from 'express';
+import {createServer} from 'http';
+import {Server as SocketIOServer, Socket} from 'socket.io';
+
+const app: Express = express();
+const httpServer = createServer(app);
+const io = new SocketIOServer(httpServer, {
+  cors: {origin: '*'},
+});
+
+// REST API 예시 라우트
+app.get('/api/hello', (req, res) => {
+  res.json({message: 'Hello from REST API!'});
+});
+
+let timer = 0;
+const status = '게임중';
+
+// 1초마다 타이머 값 증가 및 브로드캐스트
+setInterval(() => {
+  timer += 1;
+  io.emit('timer', {status, timer});
+}, 1000);
+
+io.on('connection', (socket: Socket) => {
+  // 클라이언트가 새로 접속하면 현재 상태 전송
+  socket.emit('timer', {status, timer});
+});
+
+const PORT = 3000; // REST와 웹소켓 모두 3000번 포트에서 운영
+httpServer.listen(PORT, () => {
+  console.log(`서버가 ${PORT} 포트에서 REST와 WebSocket을 함께 운영 중`);
+});