diff --git a/src/controllers/user.controller.js b/src/controllers/user.controller.js
index c595b0e..83d1aee 100644
--- a/src/controllers/user.controller.js
+++ b/src/controllers/user.controller.js
@@ -12,6 +12,18 @@ class UserController {
       next(error);
     }
   }
+  // 프로필 수정
+  async updateProfile(req, res, next) {
+    try {
+      const userId = req.user.id; // 토큰에서 내 ID 추출
+      const body = req.body;      // 클라이언트가 보낸 수정할 데이터  
+      const result = await userService.updateProfile(userId, body);
+
+      return res.success(result, "프로필 수정 성공");
+    } catch (error) {
+      next(error);
+    }
+  }
 }
 
 export default new UserController();
\ No newline at end of file
diff --git a/src/dtos/user.dto.js b/src/dtos/user.dto.js
index cb04f0d..1332803 100644
--- a/src/dtos/user.dto.js
+++ b/src/dtos/user.dto.js
@@ -1,17 +1,39 @@
+export const bodyToProfileDto = (body) => {
+  return {
+    nickname: body.nickname,
+    phoneNum: body.phoneNum,
+    email: body.email,
+    profileImage: body.profileImage,
+  };
+};
+
 export const responseFromUser = (user) => {
   return {
     userId: user.id,
     nickname: user.nickname,
+    phoneNum: user.phoneNum,
     email: user.email,
-    profileImage: user.profileImage, // 프로필 이미지 추가
-    phoneNumber: user.phoneNumber,
+    profileImage: user.profileImage,
+    phoneNum: user.phoneNum,
     deadlineAlarm: user.deadlineAlarm,
     taskAlarm: user.taskAlarm,
-    folders: user.folders.map((folder) => ({ 
-      folderId: folder.id,
-      name: folder.folderTitle,
-      color: folder.color,
-    
-    })),
+    folders: user.folders 
+      ? user.folders.map((folder) => ({ 
+          folderId: folder.id,
+          name: folder.folderTitle,
+          color: folder.color,
+        })) 
+      : [],
+  };
+};
+
+export const responseFromUpdatedUser = (user) => {
+  return {
+    userId: user.id,
+    nickname: user.nickname,
+    phoneNum: user.phoneNum || user.phoneNumber,
+    email: user.email,
+    profileImage: user.profileImage,
+    updatedAt: user.updatedAt,
   };
 };
\ No newline at end of file
diff --git a/src/repositories/user.repository.js b/src/repositories/user.repository.js
index 2cb5941..27f8f73 100644
--- a/src/repositories/user.repository.js
+++ b/src/repositories/user.repository.js
@@ -8,4 +8,18 @@ export const getUserData = async (userId) => {
   });
 
   return user;
-};
\ No newline at end of file
+};
+
+export const updateProfile = async (userId, data) => {
+  const updatedUser = await prisma.user.update({
+    where: { id: userId },
+    data: {
+      nickname: data.nickname,
+      phoneNum: data.phoneNum,
+      email: data.email,
+      profileImage: data.profileImage,
+    },
+  });
+
+  return updatedUser;
+} 
\ No newline at end of file
diff --git a/src/routes/user.route.js b/src/routes/user.route.js
index 9c02102..ebd61e1 100644
--- a/src/routes/user.route.js
+++ b/src/routes/user.route.js
@@ -5,4 +5,6 @@ const userRouter = express.Router();
 
 userRouter.get('/me', authenticate, userController.getMyInfo);
 
+userRouter.patch('/profile', authenticate, userController.updateProfile);
+
 export default userRouter;
\ No newline at end of file
diff --git a/src/services/user.service.js b/src/services/user.service.js
index ac1068a..3cc48d6 100644
--- a/src/services/user.service.js
+++ b/src/services/user.service.js
@@ -1,16 +1,42 @@
-import { NotFoundError } from "../errors/custom.error.js";
-import { responseFromUser } from "../dtos/user.dto.js";
-import { getUserData } from "../repositories/user.repository.js";
+import { NotFoundError, BadRequestError } from "../errors/custom.error.js";
+import { responseFromUser, responseFromUpdatedUser, bodyToProfileDto } from "../dtos/user.dto.js";
+import { getUserData, updateProfile } from "../repositories/user.repository.js";
 
 class UserService {
   async getMyInfo(userId) {
     const user = await getUserData(userId);
 
     if (!user) {
-      throw new NotFoundError("USER_NOT_FOUND", "해당 사용자를 찾을 수 없습니다.");
+      throw new NotFoundError(
+        "USER_NOT_FOUND", 
+        "해당 사용자를 찾을 수 없습니다."
+      );
     }
     return responseFromUser(user);
   }
+
+
+// 프로필 수정
+  async updateProfile(userId, body) {
+    if (body.nickname && body.nickname.length > 10) {
+      throw new BadRequestError(
+        "INVALID_NICKNAME",               
+        "닉네임은 최대 10자까지만 가능합니다."
+      );
+    }    
+
+    const isUserExist = await getUserData(userId);
+    if (!isUserExist) {
+      throw new NotFoundError(
+        "USER_NOT_FOUND", 
+        "해당 사용자를 찾을 수 없습니다."
+      );
+    }
+    const updateData = bodyToProfileDto(body);
+    const updatedUser = await updateProfile(userId, updateData);  
+    return responseFromUpdatedUser(updatedUser);
+  }
 }
 
-export default new UserService();
\ No newline at end of file
+export default new UserService();
+