diff --git a/server/api/src/domain/auth/auth.module.ts b/server/api/src/domain/auth/auth.module.ts
index 8c94a148..39ee1c3f 100644
--- a/server/api/src/domain/auth/auth.module.ts
+++ b/server/api/src/domain/auth/auth.module.ts
@@ -6,11 +6,12 @@ import { JwtStrategy } from './strategy/jwt.strategy';
 import { AuthController } from './controller/auth.controller';
 import { AuthService } from './service/auth.service';
 import { UserRepository } from '../user/repository/user.repository';
+import { DevFieldRepository } from '../field/repository/dev-field.repository';
 import { HistoryModule } from '../history/history.module';
 
 @Module({
   imports: [
-    TypeOrmModule.forFeature([UserRepository]),
+    TypeOrmModule.forFeature([UserRepository, DevFieldRepository]),
     PassportModule,
     JwtModule.register({
       secret: 'secretkey',
diff --git a/server/api/src/domain/auth/service/auth.service.ts b/server/api/src/domain/auth/service/auth.service.ts
index af08910c..33fa10af 100644
--- a/server/api/src/domain/auth/service/auth.service.ts
+++ b/server/api/src/domain/auth/service/auth.service.ts
@@ -4,13 +4,15 @@ import { JwtService } from '@nestjs/jwt';
 import { LocalDate } from 'js-joda';
 import { Bcrypt } from 'src/utils/bcrypt';
 import { UserBuilder } from '../../../builder';
-import { UserException } from '../../../exception';
+import { DevFieldException, UserException } from '../../../exception';
 import { User } from '../../user/user.entity';
 import { HistoryService } from 'src/domain/history/service/history.service';
 import { UserRepository } from '../../user/repository/user.repository';
+import { DevFieldRepository } from 'src/domain/field/repository/dev-field.repository';
 import { LoginRequestDto } from '../dto/login-request.dto';
 import { UserResponseDto } from '../dto/user-response.dto';
 import { JoinRequestDto } from '../dto/join-request.dto';
+import { DevField } from 'src/domain/field/dev-field.entity';
 
 @Injectable()
 export class AuthService {
@@ -18,6 +20,9 @@ export class AuthService {
     @InjectRepository(UserRepository)
     private readonly userRepository: UserRepository,
 
+    @InjectRepository(DevFieldRepository)
+    private readonly devFieldRepository: DevFieldRepository,
+
     private readonly historyService: HistoryService,
     private jwtService: JwtService,
   ) {}
@@ -42,11 +47,14 @@ export class AuthService {
     const { nickname, email, password } = joinRequestDto;
     const isExistUser = await this.userRepository.exists(joinRequestDto);
     if (isExistUser) throw UserException.userIsExist();
+    const devField: DevField = await this.devFieldRepository.findDevById(joinRequestDto.devFieldId);
+    if (!devField) throw DevFieldException.devFieldNotFound();
     const user: User = new UserBuilder()
       .setNickName(nickname)
       .setEmail(email)
       .setPassword(Bcrypt.hash(password))
       .setImageURL(process.env.DEFAULT_IMG)
+      .setDevField(devField)
       .build();
     await this.userRepository.save(user);
     return true;
diff --git a/server/socket/src/gateway/room.gateway.ts b/server/socket/src/gateway/room.gateway.ts
index 731386d4..eb1f336f 100644
--- a/server/socket/src/gateway/room.gateway.ts
+++ b/server/socket/src/gateway/room.gateway.ts
@@ -31,28 +31,44 @@ export class RoomGateway implements OnGatewayInit, OnGatewayConnection, OnGatewa
   }
 
   @SubscribeMessage('join-room')
-  handleJoinRoom(client: Socket, { field, img, nickname, roomId }: IRoomRequest): void {
+  handleJoinRoom(client: Socket, { field, img, nickname, roomId, maxHead }: IRoomRequest): void {
+    client.leave(client.id); //verify-room에서 생성한 룸을 삭제합니다. 이제 사용될 일이 없어서..
     client.join(roomId);
-    if (!this.userList[roomId]) this.userList[roomId] = {};
-    this.userList[roomId][nickname] = {
+    if (!this.userList[roomId]) this.userList[roomId] = { list: {}, maxHead: maxHead };
+    this.userList[roomId]['list'][nickname] = {
       field: field,
       img: img,
     };
-    this.server.to(roomId).emit('user-list', this.userList[roomId]);
+    this.server.to(roomId).emit('user-list', this.userList[roomId]['list']);
   }
 
   @SubscribeMessage('leave-room')
   handleLeaveRoom(client: Socket, { nickname, roomId }: IRoomRequest): void {
     client.leave(roomId);
-    delete this.userList[roomId][nickname];
-    this.server.to(roomId).emit('user-list', this.userList[roomId]);
+    delete this.userList[roomId]['list'][nickname];
+    this.server.to(roomId).emit('user-list', this.userList[roomId]['list']);
   }
 
   @SubscribeMessage('kick-room')
   handleKickRoom(client: Socket, { roomId, kickNickname }: IRoomRequest): void {
     if (!kickNickname) return;
-    delete this.userList[roomId][kickNickname];
-    this.server.to(roomId).emit('user-list', this.userList[roomId]);
+    delete this.userList[roomId]['list'][kickNickname];
+    this.server.to(roomId).emit('user-list', this.userList[roomId]['list']);
+  }
+
+  @SubscribeMessage('verify-room')
+  handleVerifyRoom(client: Socket, { roomId }: IRoomRequest): void {
+    client.join(client.id); //해당 사용자한테만 전송될 수 있게
+    if (!this.userList[roomId]) {
+      this.server.to(client.id).emit('is-verify', true);
+      return;
+    }
+    if (Object.keys(this.userList[roomId]['list']).length < this.userList[roomId]['maxHead']) {
+      this.server.to(client.id).emit('is-verify', true);
+      return;
+    }
+
+    this.server.to(client.id).emit('is-verify', false);
   }
 
   afterInit(server: Server) {
diff --git a/server/socket/src/gateway/room.interface.ts b/server/socket/src/gateway/room.interface.ts
index 4c5ee3fc..6cd938f8 100644
--- a/server/socket/src/gateway/room.interface.ts
+++ b/server/socket/src/gateway/room.interface.ts
@@ -6,6 +6,7 @@ export interface IRoomRequest {
   kickNickname?: string;
   field?: string;
   img?: string;
+  maxHead: number;
 }
 
 export enum MessageType {