diff --git a/src/index.ts b/src/index.ts
index 531ba1e..5e11a2c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,9 +5,6 @@ import oauthRouter from "./routes/oauth";
 import { googleStrategy } from "./auth.config";
 import swaggerUi from "swagger-ui-express";
 import YAML from "yamljs";
-import swaggerUi from 'swagger-ui-express';
-import YAML from 'yamljs';
-
 
 const app = express();
 const port = 3000;
@@ -15,7 +12,6 @@ passport.use(googleStrategy);
 passport.serializeUser((user, done) => done(null, user));
 passport.deserializeUser((user, done) => done(null, user as Express.User));
 
-
 app.use(sessionMiddleware);
 app.use(passport.initialize());
 app.use(passport.session());
@@ -25,8 +21,8 @@ const swaggerDocument = YAML.load("./src/swagger/openapi.yaml");
 // Swagger UI 설정
 app.use("/docs", swaggerUi.serve, swaggerUi.setup(swaggerDocument));
 
-app.get('/', (req, res) => {
-  res.send('Hello World!');
+app.get("/", (req, res) => {
+  res.send("Hello World!");
 });
 app.use("/oauth2", oauthRouter);
 
@@ -34,4 +30,3 @@ app.listen(port, () => {
   console.log(`Server is running at http://localhost:${port}`);
   console.log(`Swagger UI is available at http://localhost:${port}/docs`);
 });
-
diff --git a/src/swagger/openapi.yaml b/src/swagger/openapi.yaml
index 9a1e4d1..12b7976 100644
--- a/src/swagger/openapi.yaml
+++ b/src/swagger/openapi.yaml
@@ -8,10 +8,69 @@ paths:
     get:
       summary: Hello World
       responses:
-        '200':
+        "200":
           description: 성공
           content:
             text/plain:
               schema:
                 type: string
-                example: Hello World!
\ No newline at end of file
+                example: Hello World!
+  /oauth2/login/google:
+    get:
+      summary: Google OAuth2 로그인 시작
+      description: Google 로그인 창으로 리디렉션됩니다.
+      tags:
+        - Auth
+      responses:
+        "302":
+          description: 구글 로그인 페이지로 리디렉션
+
+  /oauth2/callback/google:
+    get:
+      summary: Google OAuth2 콜백
+      description: Google 로그인 후 인증 정보를 처리하는 콜백 URL입니다.
+      tags:
+        - Auth
+      responses:
+        "302":
+          description: 로그인 성공 시 리디렉션
+        "401":
+          description: 로그인 실패
+
+  /oauth2/me:
+    get:
+      summary: 로그인된 사용자 정보 조회
+      description: 세션을 기반으로 로그인된 사용자의 정보를 반환합니다.
+      tags:
+        - Auth
+      responses:
+        "200":
+          description: 로그인된 사용자 정보
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/User"
+        "401":
+          description: 로그인되지 않은 상태
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  message:
+                    type: string
+                    example: Unauthorized
+components:
+  schemas:
+    User:
+      type: object
+      properties:
+        id:
+          type: integer
+          example: 1
+        email:
+          type: string
+          example: example@gmail.com
+        name:
+          type: string
+          example: 홍길동