diff --git a/backend/src/auth/dto/user-data.dto.ts b/backend/src/auth/dto/user-data.dto.ts
index ea9f7de..bfea330 100644
--- a/backend/src/auth/dto/user-data.dto.ts
+++ b/backend/src/auth/dto/user-data.dto.ts
@@ -1,18 +1,43 @@
-import { IsString } from 'class-validator';
+import {
+  IsNotEmpty,
+  IsString,
+  Matches,
+  MaxLength,
+  MinLength,
+} from 'class-validator';
 import { socialPlatform } from '../user.enum';
 
 export class UserDataDto {
+  @IsNotEmpty()
   @IsString()
   id: string;
 
+  @IsNotEmpty()
   @IsString()
   social: socialPlatform;
 }
 
 export class UserDataFromSocialDto {
+  @IsNotEmpty()
   @IsString()
   id: string;
 
+  @IsNotEmpty()
   @IsString()
   profileImg: string;
 }
+
+export class signupDataDto {
+  @IsNotEmpty()
+  @IsString()
+  @MinLength(4)
+  @MaxLength(12)
+  @Matches(/^[a-zA-z0-9ㄱ-ㅎㅏ-ㅣ가-힣 ]*$/, {
+    message: '특수문자는 불가합니다.',
+  })
+  nickname: string;
+
+  @IsNotEmpty()
+  @IsString()
+  characterName: string;
+}
diff --git a/backend/src/auth/entity/user.entity.ts b/backend/src/auth/entity/user.entity.ts
index e7ba98e..02764c2 100644
--- a/backend/src/auth/entity/user.entity.ts
+++ b/backend/src/auth/entity/user.entity.ts
@@ -12,10 +12,7 @@ export class User {
   nickname: string;
 
   @Column()
-  character_name: string;
-
-  @Column()
-  email: string;
+  characterName: string;
 
   @Column({
     type: 'enum',
diff --git a/backend/src/auth/jwt-auth.strategy.ts b/backend/src/auth/jwt-auth.strategy.ts
index 6b2dacd..ab60f64 100644
--- a/backend/src/auth/jwt-auth.strategy.ts
+++ b/backend/src/auth/jwt-auth.strategy.ts
@@ -47,7 +47,7 @@ export class JwtStrategy2 extends PassportStrategy(Strategy, 'looseGuard') {
   }
 
   // db 참조 하지 않는 guard
-  async validate(): Promise<boolean> {
-    return true;
+  async validate(payload: UserDataDto): Promise<UserDataDto> {
+    return payload;
   }
 }
diff --git a/backend/src/auth/user.controller.ts b/backend/src/auth/user.controller.ts
index 1dab866..cfdb304 100644
--- a/backend/src/auth/user.controller.ts
+++ b/backend/src/auth/user.controller.ts
@@ -5,12 +5,15 @@ import {
   Param,
   Post,
   Query,
+  Req,
   Res,
   UseGuards,
+  ValidationPipe,
 } from '@nestjs/common';
 import { AuthGuard } from '@nestjs/passport';
 import { Response } from 'express';
 import { AuthService } from 'src/auth/auth.service';
+import { signupDataDto, UserDataDto } from './dto/user-data.dto';
 import { socialPlatformValidationPipe } from './pipes/social-platform.pipe';
 import { socialPlatform } from './user.enum';
 import { UserService } from './user.service';
@@ -70,13 +73,17 @@ export class UserController {
 
   @Post()
   @UseGuards(AuthGuard('looseGuard'))
-  signUp(@Body() signupData: object) {
-    // jwt안에 값 추출로직
+  signUp(
+    @Body('signupData', ValidationPipe) signupData: signupDataDto,
+    @Req() req: any
+  ) {
+    const { id, social }: UserDataDto = req.user;
+    // body안에 nickname, characterName FE에 전송 요청
     this.userService.createUser({
-      id: signupData['id'],
+      id,
+      social,
       nickname: signupData['nickname'],
-      character_name: signupData['character_name'],
-      social: signupData['social'],
+      characterName: signupData['characterName'],
     });
   }
 }