diff --git a/src/activity/activity.controller.ts b/src/activity/activity.controller.ts
index a807aea..9bb12ce 100644
--- a/src/activity/activity.controller.ts
+++ b/src/activity/activity.controller.ts
@@ -1,10 +1,7 @@
-import { Controller, Get, Param, UseGuards } from '@nestjs/common';
-import { ApiBearerAuth, ApiOkResponse, ApiOperation, ApiParam, ApiTags } from '@nestjs/swagger';
+import { Controller, UseGuards } from '@nestjs/common';
+import { ApiBearerAuth, ApiTags } from '@nestjs/swagger';
 import { JwtAuthGuard } from 'src/auth/guard/auth.guard';
-import { BaseResponse } from 'src/global/base/base-response';
-import { ExtractPayload } from 'src/global/decorator/extract-payload.decorator';
 import { ActivityService } from './activity.service';
-import { ActivityDetailResponse } from './dto/activity-detail-response.dto';
 
 @Controller('api/activities')
 @UseGuards(JwtAuthGuard)
@@ -13,17 +10,17 @@ import { ActivityDetailResponse } from './dto/activity-detail-response.dto';
 export class ActivityController {
   constructor(private readonly activityService: ActivityService) {}
 
-  @Get(':activityId')
-  @ApiOperation({
-    summary: '활동 세부 정보 조회',
-    description: '활동 세부 정보를 조회한다. 리뷰는 따로 API 호출 해주세요!',
-  })
-  @ApiParam({ name: 'activityId', description: '세부 정보를 조회할 활동 아이디' })
-  @ApiOkResponse({ type: ActivityDetailResponse })
-  async getActivityDetail(
-    @ExtractPayload() userId: number,
-    @Param('activityId') activityId: number,
-  ): Promise<BaseResponse<ActivityDetailResponse>> {
-    return BaseResponse.of(await this.activityService.getActivityDetail(userId, activityId));
-  }
+  // @Get(':activityId')
+  // @ApiOperation({
+  //   summary: '활동 세부 정보 조회',
+  //   description: '활동 세부 정보를 조회한다. 리뷰는 따로 API 호출 해주세요!',
+  // })
+  // @ApiParam({ name: 'activityId', description: '세부 정보를 조회할 활동 아이디' })
+  // @ApiOkResponse({ type: ActivityDetailResponse })
+  // async getActivityDetail(
+  //   @ExtractPayload() userId: number,
+  //   @Param('activityId') activityId: number,
+  // ): Promise<BaseResponse<ActivityDetailResponse>> {
+  //   return BaseResponse.of(await this.activityService.getActivityDetail(userId, activityId));
+  // }
 }
diff --git a/src/auth/auth.controller.ts b/src/auth/auth.controller.ts
index 8e6daf9..b354b17 100644
--- a/src/auth/auth.controller.ts
+++ b/src/auth/auth.controller.ts
@@ -1,7 +1,6 @@
-import { Body, Controller, Get, HttpCode, HttpStatus, Post, UseGuards } from '@nestjs/common';
+import { Body, Controller, Get, HttpCode, HttpStatus, Post } from '@nestjs/common';
 import { ApiBearerAuth, ApiHeaders, ApiOkResponse, ApiOperation, ApiTags } from '@nestjs/swagger';
 import { BaseResponse } from 'src/global/base/base-response';
-import { ExtractPayload } from 'src/global/decorator/extract-payload.decorator';
 import { ExtractToken } from 'src/global/decorator/extract-token.decorator';
 import { AuthService } from './auth.service';
 import { AppleOAuthRequest } from './dto/apple-oauth-request.dto';
@@ -12,7 +11,6 @@ import { JwtResponse } from './dto/jwt-response.dto';
 import { KakaoOAuthRequest } from './dto/kakao-oauth-request.dto';
 import { KakaoOAuthResponse } from './dto/kakao-oauth-response.dto';
 import { LoginRequest } from './dto/login-request.dto';
-import { JwtAuthGuard } from './guard/auth.guard';
 
 @Controller('api/auth')
 @ApiTags('auth')
@@ -31,7 +29,6 @@ export class AuthController {
   }
 
   @Get('reissue')
-  @UseGuards(JwtAuthGuard)
   @ApiOperation({
     summary: 'Access Token 만료시 재발급',
     description: 'Access Token과 Refresh Token을 재발급한다.',
@@ -39,11 +36,8 @@ export class AuthController {
   @ApiBearerAuth()
   @ApiHeaders([{ name: 'Authorization', description: 'Refresh Token' }])
   @ApiOkResponse({ type: JwtResponse, description: '재발급 성공' })
-  async reissueToken(
-    @ExtractPayload() userId: number,
-    @ExtractToken() refreshToken: string,
-  ): Promise<BaseResponse<JwtResponse>> {
-    return BaseResponse.of(await this.authService.reissueToken(userId, refreshToken));
+  async reissueToken(@ExtractToken() refreshToken: string): Promise<BaseResponse<JwtResponse>> {
+    return BaseResponse.of(await this.authService.reissueToken(refreshToken));
   }
 
   @Post('email-check')
diff --git a/src/auth/auth.module.ts b/src/auth/auth.module.ts
index cbf9692..4727e0f 100644
--- a/src/auth/auth.module.ts
+++ b/src/auth/auth.module.ts
@@ -3,12 +3,13 @@ import { JwtModule } from '@nestjs/jwt';
 import { PassportModule } from '@nestjs/passport';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { User } from 'src/user/entity/user.entity';
+import { UserModule } from 'src/user/user.module';
 import { AuthController } from './auth.controller';
 import { AuthService } from './auth.service';
 import { JwtStrategy } from './strategy/jwt.strategy';
 
 @Module({
-  imports: [JwtModule.register({}), TypeOrmModule.forFeature([User]), PassportModule],
+  imports: [JwtModule.register({}), TypeOrmModule.forFeature([User]), PassportModule, UserModule],
   controllers: [AuthController],
   providers: [AuthService, JwtStrategy],
   exports: [AuthService],
diff --git a/src/auth/auth.service.ts b/src/auth/auth.service.ts
index bb7fdfd..e630163 100644
--- a/src/auth/auth.service.ts
+++ b/src/auth/auth.service.ts
@@ -11,7 +11,6 @@ import { BaseException } from 'src/global/base/base-exception';
 import { Password } from 'src/user/entity/password';
 import { User } from 'src/user/entity/user.entity';
 import { SocialType } from 'src/user/enum/social-type';
-import { UserResponseCode } from 'src/user/exception/user-response-code';
 import { Repository } from 'typeorm';
 import { AppleOAuthResponse } from './dto/apple-oauth-response.dto';
 import { JwtResponse } from './dto/jwt-response.dto';
@@ -107,18 +106,15 @@ export class AuthService {
     return await this.userRepository.exist({ where: { email } });
   }
 
-  async reissueToken(userId: number, refreshToken: string) {
-    const user = await this.userRepository.findOneBy({ userId });
-    if (!user) {
-      throw BaseException.of(UserResponseCode.USER_NOT_FOUND);
-    }
+  async reissueToken(refreshToken: string) {
+    const user = await this.userRepository.findOneBy({ refreshToken });
 
-    if (user.refreshToken !== refreshToken) {
+    if (!user) {
       throw BaseException.of(AuthResponseCode.INVALID_TOKEN);
     }
 
-    const newAccessToken = await this.generateAccessToken(userId);
-    const newRefreshToken = await this.generateRefreshToken(userId);
+    const newAccessToken = await this.generateAccessToken(user.userId);
+    const newRefreshToken = await this.generateRefreshToken(user.userId);
 
     user.refreshToken = newRefreshToken;
     await this.userRepository.save(user);
diff --git a/src/auth/strategy/jwt.strategy.ts b/src/auth/strategy/jwt.strategy.ts
index 1782685..2840394 100644
--- a/src/auth/strategy/jwt.strategy.ts
+++ b/src/auth/strategy/jwt.strategy.ts
@@ -3,18 +3,23 @@ import { ConfigService } from '@nestjs/config';
 import { PassportStrategy } from '@nestjs/passport';
 import { ExtractJwt, Strategy } from 'passport-jwt';
 import { Config } from 'src/global/config/config.type';
+import { User } from 'src/user/entity/user.entity';
+import { UserService } from 'src/user/user.service';
 import { JwtPayloadType } from './type/jwt-payload.type';
 
 @Injectable()
 export class JwtStrategy extends PassportStrategy(Strategy, 'jwt') {
-  constructor(private configService: ConfigService<Config>) {
+  constructor(
+    private configService: ConfigService<Config>,
+    private readonly userService: UserService,
+  ) {
     super({
       jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
       secretOrKey: configService.get('auth.secret', { infer: true }),
     });
   }
 
-  public validate(payload: JwtPayloadType): JwtPayloadType {
-    return payload;
+  public async validate(payload: JwtPayloadType): Promise<User> {
+    return await this.userService.findUserById(payload.sub);
   }
 }
diff --git a/src/auth/strategy/type/jwt-payload.type.ts b/src/auth/strategy/type/jwt-payload.type.ts
index 1a1b3cf..68c08cb 100644
--- a/src/auth/strategy/type/jwt-payload.type.ts
+++ b/src/auth/strategy/type/jwt-payload.type.ts
@@ -1,5 +1,5 @@
 export type JwtPayloadType = {
-  userId: number;
+  sub: number;
   iat: number;
   exp: number;
   iss: string;
diff --git a/src/user/user.service.ts b/src/user/user.service.ts
index 931a8d3..4c7873d 100644
--- a/src/user/user.service.ts
+++ b/src/user/user.service.ts
@@ -28,6 +28,15 @@ export class UserService {
     return this.userRepository.exist({ where: { userId } });
   }
 
+  async findUserById(userId: number): Promise<User> {
+    const user = await this.userRepository.findOneBy({ userId });
+    if (!user) {
+      throw BaseException.of(UserResponseCode.USER_NOT_FOUND);
+    }
+
+    return user;
+  }
+
   async create(request: SignUpRequest, profileImage: Express.Multer.File): Promise<User> {
     const newUser = this.userRepository.save(await UserConverter.toUser(request, profileImage));