diff --git a/src/controllers/userController.ts b/src/controllers/userController.ts
index 3b92efb..e19b368 100644
--- a/src/controllers/userController.ts
+++ b/src/controllers/userController.ts
@@ -35,6 +35,7 @@ import SocialLoginDto from '../intefaces/user/SocialLoginDto';
 import LoginResponseDto from '../intefaces/user/LoginResponseDto';
 import { SocialVendor } from '../models/socialVendor';
 import IUser from '../models/interface/IUser';
+import {AgeGroup, AgeGroupKey} from '../models/user/ageGroup';
 
 /**
  * @route GET /email
@@ -185,7 +186,7 @@ const postUser = async (
       email: req.body.email,
       password: req.body.password,
       nickname: req.body.nickname,
-      birthday: req.body.birthday,
+      ageGroup: AgeGroup[req.body.ageGroup],
       gender: req.body.gender,
       profileImgUrl: (req?.file as Express.MulterS3.File)?.location
     };
diff --git a/src/intefaces/createUserCommand.ts b/src/intefaces/createUserCommand.ts
index 6be7f92..d4b2eff 100644
--- a/src/intefaces/createUserCommand.ts
+++ b/src/intefaces/createUserCommand.ts
@@ -1,8 +1,10 @@
+import {AgeGroup, AgeGroupKey} from '../models/user/ageGroup';
+
 interface CreateUserCommand {
   email: string;
   password: string;
   nickname: string;
-  birthday: string;
+  ageGroup: AgeGroup;
   gender: string;
   profileImgUrl: string;
 }
@@ -11,7 +13,7 @@ interface CreateUserReq {
   email: string;
   password: string;
   nickname: string;
-  birthday: string;
+  ageGroup: AgeGroupKey;
   gender: string;
 }
 
diff --git a/src/models/user/ageGroup.ts b/src/models/user/ageGroup.ts
index d86b873..8996023 100644
--- a/src/models/user/ageGroup.ts
+++ b/src/models/user/ageGroup.ts
@@ -1,12 +1,14 @@
 enum AgeGroup {
-  CHILDREN = '0-13', //   14세 미만(0-13)
-  ADOLECENT = '14-19', // 14세 이상(14-19)
-  TWENTIES = '20-29', // 20대(20-29)
-  THIRTIES = '30-39', // 30대(30-39)
-  FOURTIES = '40-49', // 40대(40-49)
-  FIFTIES = '50-59', // 50대(50-59)
-  OVER_SIXTIES = '60-', // 60대 이상(60 - )
+  CHILDREN = '0-13',
+  ADOLESCENT = '14-19',
+  TWENTIES = '20-29',
+  THIRTIES = '30-39',
+  FORTIES = '40-49',
+  FIFTIES = '50-59',
+  OVER_SIXTIES = '60-',
   UNDEFINED = '정의 안 함'
 }
 
-export { AgeGroup };
+type AgeGroupKey = keyof typeof AgeGroup;
+
+export { AgeGroup, AgeGroupKey };
diff --git a/src/routes/userRouter/index.ts b/src/routes/userRouter/index.ts
index 3bc9454..33e5546 100644
--- a/src/routes/userRouter/index.ts
+++ b/src/routes/userRouter/index.ts
@@ -30,14 +30,6 @@ router.post(
   UserController.postUser
 );
 
-// router.patch(
-//   '',
-//   auth,
-//   upload.single('imgFile'),
-//   [body('nickname').notEmpty(), body('birthday').notEmpty()],
-//   UserController.patchUser
-// );
-
 router.post('/social', UserController.socialLogin);
 
 router.post(
diff --git a/src/services/dto/KakaoResponse.ts b/src/services/dto/KakaoResponse.ts
index 758f1cd..aceeeaf 100644
--- a/src/services/dto/KakaoResponse.ts
+++ b/src/services/dto/KakaoResponse.ts
@@ -50,13 +50,13 @@ const toPiickleAgeGroup = (ageGroup: string): AgeGroup => {
     case '10~14':
       return AgeGroup.CHILDREN;
     case '15~19':
-      return AgeGroup.ADOLECENT;
+      return AgeGroup.ADOLESCENT;
     case '20~29':
       return AgeGroup.TWENTIES;
     case '30~39':
       return AgeGroup.THIRTIES;
     case '40~49':
-      return AgeGroup.FOURTIES;
+      return AgeGroup.FORTIES;
     case '50~59':
       return AgeGroup.FIFTIES;
     case '60~69':
diff --git a/src/services/dto/NaverResponse.ts b/src/services/dto/NaverResponse.ts
index 5b63071..46f4fc4 100644
--- a/src/services/dto/NaverResponse.ts
+++ b/src/services/dto/NaverResponse.ts
@@ -45,13 +45,13 @@ const toPiickleAgeGroup = (age?: string): AgeGroup => {
   switch (age) {
     case '0-9':
     case '10-19':
-      return AgeGroup.ADOLECENT;
+      return AgeGroup.ADOLESCENT;
     case '20-29':
       return AgeGroup.TWENTIES;
     case '30-39':
       return AgeGroup.THIRTIES;
     case '40-49':
-      return AgeGroup.FOURTIES;
+      return AgeGroup.FORTIES;
     case '50-59':
       return AgeGroup.FIFTIES;
     case '60-':
diff --git a/src/services/userService.ts b/src/services/userService.ts
index 7dc586e..081af64 100644
--- a/src/services/userService.ts
+++ b/src/services/userService.ts
@@ -18,8 +18,6 @@ import { UserBookmarkInfo } from '../intefaces/user/UserBookmarkInfo';
 import Bookmark from '../models/bookmark';
 import PreUser from '../models/preUser';
 import Card, { CardDocument } from '../models/card';
-// import { UpdateUserDto } from '../intefaces/user/UpdateUserDto';
-import util from '../modules/util';
 import QuitLog from '../models/quitLog';
 
 const isEmailExisting = async (email: string): Promise<boolean> => {
@@ -46,7 +44,7 @@ const createUser = async (command: CreateUserCommand) => {
     email,
     password,
     nickname,
-    birthday: birthStr,
+    ageGroup,
     gender,
     profileImgUrl: profileImageUrl
   } = command;
@@ -56,7 +54,7 @@ const createUser = async (command: CreateUserCommand) => {
     email,
     hashedPassword: hashSync(password, 10),
     nickname,
-    birthday: util.stringToDate(birthStr),
+    ageGroup,
     gender,
     profileImageUrl
   });
@@ -64,19 +62,6 @@ const createUser = async (command: CreateUserCommand) => {
   return user;
 };
 
-// const patchUser = async (updateUserDto: UpdateUserDto) => {
-//   const user = await User.findById(updateUserDto.id);
-//   if (!user) {
-//     throw new IllegalArgumentException('해당 id의 유저가 존재하지 않습니다.');
-//   }
-//   const { nickname, profileImgUrl, birthday, gender } = updateUserDto;
-//   user.nickname = nickname;
-//   user.birthday = util.stringToDate(birthday);
-//   user.profileImageUrl = profileImgUrl ? profileImgUrl : user.profileImageUrl;
-//   user.gender = gender ? gender : '기타';
-//   await user.save();
-// };
-
 const loginUser = async (
   userLoginDto: UserLoginDto
 ): Promise<PostBaseResponseDto> => {
@@ -248,7 +233,6 @@ const deleteUser = async (userId: Types.ObjectId, reasons: string[]) => {
 export {
   isEmailExisting,
   createUser,
-  // patchUser,
   loginUser,
   findUserById,
   updateNickname,