diff --git a/packages/server/package.json b/packages/server/package.json
index 11c044d..d3b1e84 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -23,6 +23,7 @@
     "@aws-sdk/client-s3": "^3.682.0",
     "@aws-sdk/s3-request-presigner": "^3.682.0",
     "@imgly/background-removal-node": "^1.4.5",
+    "@nestjs/axios": "^3.1.3",
     "@nestjs/common": "^10.0.0",
     "@nestjs/config": "^3.3.0",
     "@nestjs/core": "^10.0.0",
@@ -35,6 +36,7 @@
     "class-validator": "^0.14.1",
     "dotenv": "^16.4.5",
     "ioredis": "^5.4.1",
+    "jsonwebtoken": "^9.0.2",
     "mysql2": "^3.11.3",
     "node-imap": "^0.9.6",
     "passport": "^0.7.0",
@@ -52,6 +54,7 @@
     "@nestjs/testing": "^10.0.0",
     "@types/express": "^4.17.17",
     "@types/jest": "^29.5.2",
+    "@types/jsonwebtoken": "^9",
     "@types/multer": "^1.4.12",
     "@types/node": "^20.3.1",
     "@types/node-imap": "^0",
@@ -62,7 +65,7 @@
     "@types/uuid": "^10",
     "@typescript-eslint/eslint-plugin": "^6.0.0",
     "@typescript-eslint/parser": "^6.0.0",
-    "axios": "^1.7.7",
+    "axios": "^1.7.9",
     "eslint": "^8.42.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.2.1",
diff --git a/packages/server/src/app.module.ts b/packages/server/src/app.module.ts
index 77845e2..edba386 100644
--- a/packages/server/src/app.module.ts
+++ b/packages/server/src/app.module.ts
@@ -35,7 +35,7 @@ export const modules = [
       const errors = validateSync(validatedConfig);
       if (errors.length > 0) {
         errors.map((err) => {
-          console.error(err);
+          console.error('필수 환경 변수가 없습니다 :', err.constraints);
         });
       }
 
diff --git a/packages/server/src/domain/auth/auth.controller.ts b/packages/server/src/domain/auth/auth.controller.ts
index 14732dc..d4e875d 100644
--- a/packages/server/src/domain/auth/auth.controller.ts
+++ b/packages/server/src/domain/auth/auth.controller.ts
@@ -38,7 +38,7 @@ export class AuthController {
     @Body() dto: SignRequest,
     @Res({ passthrough: true }) res: Response,
   ) {
-    const data = await this.auth.signUp(dto.phone, dto.password);
+    const data = await this.auth.signUp(dto.email, dto.password);
     res.cookie('accessToken', data.access, {
       httpOnly: true,
     });
@@ -57,7 +57,28 @@ export class AuthController {
     @Body() dto: SignRequest,
     @Res({ passthrough: true }) res: Response,
   ) {
-    const data = await this.auth.signIn(dto.phone, dto.password);
+    const data = await this.auth.signIn(dto.email, dto.password);
+    res.cookie('accessToken', data.access, {
+      httpOnly: true,
+    });
+    res.cookie('refreshToken', data.refresh, { httpOnly: true });
+    return {
+      result: true,
+      data,
+    };
+  }
+
+  @ApiOperation({
+    summary : '구글 이메일 로그인',
+    description : '기존 회원이 아닐 경우 회원 가입 처리'
+  })
+  @Post('signin/google')
+  @UseGuards()
+  async signInWithGoogle(
+    @Body() body : {code : string},
+    @Res({ passthrough: true }) res: Response,
+  ) {
+    const data = await this.auth.signInWithGoogle(body.code)
     res.cookie('accessToken', data.access, {
       httpOnly: true,
     });
diff --git a/packages/server/src/domain/auth/auth.facade.ts b/packages/server/src/domain/auth/auth.facade.ts
index 0f74086..feb5378 100644
--- a/packages/server/src/domain/auth/auth.facade.ts
+++ b/packages/server/src/domain/auth/auth.facade.ts
@@ -8,6 +8,8 @@ import { AuthService } from './service/auth.service';
 import { MailService } from './service/mail.service';
 import { SessionService } from './service/session.service';
 import { UserService } from '../user/user.service';
+import { randomString } from '@app/util/random';
+import { GoogleService } from '../google/google.service';
 
 @Injectable()
 export class AuthFacade {
@@ -17,6 +19,7 @@ export class AuthFacade {
     private readonly authService: AuthService,
     private readonly mailService: MailService,
     private readonly sessionService: SessionService,
+    private readonly googleService: GoogleService,
   ) {}
 
   async prepareSignUp(phone: string) {
@@ -38,10 +41,10 @@ export class AuthFacade {
     return await this.authService.resign(refreshToken);
   }
 
-  async signIn(phone: string, pwd: string) {
+  async signIn(email: string, pwd: string) {
     //TODO: 이미 로그인되었을 경우 기존 로그인 세션 제거
     const { userId, access, refresh } = await this.authService.signIn(
-      phone,
+      email,
       pwd,
     );
     await this.sessionService.setSignInSession(userId, access, refresh);
@@ -51,11 +54,14 @@ export class AuthFacade {
     };
   }
 
-  async signUpWithGoogle(mail: string) {
-    const user = await this.userService.getGoogleUser(mail).catch((err) => {
+  async signInWithGoogle(authCode: string) {
+    const email = await this.googleService.getEmailFromCode(authCode);
+    const user = await this.userService.getUser({email}).catch( async (err) => {
       if (err instanceof UnauthorizedException) {
+        return await this.userService.saveUser(email,randomString(10))
       }
       throw err;
     });
+    return this.signIn(user.email,user.password)
   }
 }
diff --git a/packages/server/src/domain/auth/auth.google.controller.ts b/packages/server/src/domain/auth/auth.google.controller.ts
deleted file mode 100644
index 0349962..0000000
--- a/packages/server/src/domain/auth/auth.google.controller.ts
+++ /dev/null
@@ -1,31 +0,0 @@
-import {
-  Body,
-  Controller,
-  Get,
-  Post,
-  Request,
-  Res,
-  UseGuards,
-} from '@nestjs/common';
-import { AuthGuard } from '@nestjs/passport';
-import { ApiOperation } from '@nestjs/swagger';
-import { GoogleSignRequest, SignRequest } from './dto/sign';
-import { AuthFacade } from './auth.facade';
-import { Response } from 'express';
-
-@Controller('auth/google')
-export class AuthGoogleController {
-  constructor(private readonly auth: AuthFacade) {}
-
-  @Get()
-  @UseGuards(AuthGuard('google'))
-  async googleAuth() {}
-
-  @Get('redirect')
-  @UseGuards(AuthGuard('google'))
-  async googleAuthRedirect() {
-    return {
-      result: true,
-    };
-  }
-}
diff --git a/packages/server/src/domain/auth/auth.module.ts b/packages/server/src/domain/auth/auth.module.ts
index 08e1447..0a77207 100644
--- a/packages/server/src/domain/auth/auth.module.ts
+++ b/packages/server/src/domain/auth/auth.module.ts
@@ -10,7 +10,6 @@ import { UserRefreshStrategy } from '@app/jwt/strategy/user.refresh.strategy';
 import { AuthFacade } from './auth.facade';
 import { MailService } from './service/mail.service';
 import { SessionService } from './service/session.service';
-import { AuthGoogleController } from './auth.google.controller';
 import { GoogleStrategy } from '@app/jwt/strategy/google.strategy';
 
 interface AuthModuleAsyncOptions {
@@ -42,7 +41,7 @@ export class AuthModule {
           inject: options.inject,
         }),
       ],
-      controllers: [AuthController, AuthGoogleController],
+      controllers: [AuthController],
       providers: [
         {
           provide: UserAccessStrategy,
diff --git a/packages/server/src/domain/auth/dto/sign.ts b/packages/server/src/domain/auth/dto/sign.ts
index 08cb902..85572fb 100644
--- a/packages/server/src/domain/auth/dto/sign.ts
+++ b/packages/server/src/domain/auth/dto/sign.ts
@@ -1,20 +1,14 @@
 import { ApiProperty } from '@nestjs/swagger';
-import { IsEmail, IsNotEmpty, IsPhoneNumber, IsString } from 'class-validator';
+import { IsEmail, IsNotEmpty, IsString } from 'class-validator';
 
 export class SignRequest {
-  @ApiProperty({ description: '휴대폰 번호', example: '01012341234' })
+  @ApiProperty({ description: '이메일 주소', example: 'fog0510@gmail.com' })
   @IsNotEmpty()
-  @IsPhoneNumber('KR')
-  phone: string;
+  @IsEmail()
+  email: string;
 
   @ApiProperty({ description: '패스워드' })
   @IsNotEmpty()
   @IsString()
   password: string;
-}
-
-export class GoogleSignRequest extends SignRequest{
-  @IsNotEmpty()
-  @IsEmail()
-  mail : string;
 }
\ No newline at end of file
diff --git a/packages/server/src/domain/auth/service/auth.service.ts b/packages/server/src/domain/auth/service/auth.service.ts
index 23da4d2..c1702e2 100644
--- a/packages/server/src/domain/auth/service/auth.service.ts
+++ b/packages/server/src/domain/auth/service/auth.service.ts
@@ -11,8 +11,8 @@ export class AuthService {
     private readonly jwtService: JwtService,
   ) {}
 
-  async signIn(phone: string, pwd: string) {
-    const { userId, password } = await this.userService.getUser({ phone });
+  async signIn(email: string, pwd: string) {
+    const { userId, password } = await this.userService.getUser({ email });
     if (password !== pwd)
       throw new UnauthorizedException('잘못된 비밀번호 입니다.');
     const refresh = this._generateRefreshToken(userId);
@@ -24,8 +24,8 @@ export class AuthService {
     };
   }
 
-  async signUp(phone: string, pwd: string) {
-    const user = await this.userService.saveUser(phone, pwd);
+  async signUp(email: string, pwd: string) {
+    const user = await this.userService.saveUser(email, pwd);
     const access = this._generateAccessToken(user.userId);
     const refresh = this._generateRefreshToken(user.userId);
     await this.userService.updateRefresh(user.userId, refresh);
diff --git a/packages/server/src/domain/dto/env.ts b/packages/server/src/domain/dto/env.ts
index 7a8c74d..c3fcfc3 100644
--- a/packages/server/src/domain/dto/env.ts
+++ b/packages/server/src/domain/dto/env.ts
@@ -89,4 +89,16 @@ export class Enviroments {
   @IsNotEmpty()
   @IsString()
   JWT_REFRESH_EXPIRES: string;
+
+  @IsNotEmpty()
+  @IsString()
+  GOOGLE_CALLBACK_URL : string;
+
+  @IsNotEmpty()
+  @IsString()
+  GOOGLE_CLIENT_ID : string;
+
+  @IsNotEmpty()
+  @IsString()
+  GOOGLE_CLIENT_SECRET : string;
 }
diff --git a/packages/server/src/domain/google/google.service.ts b/packages/server/src/domain/google/google.service.ts
new file mode 100644
index 0000000..1f171e8
--- /dev/null
+++ b/packages/server/src/domain/google/google.service.ts
@@ -0,0 +1,49 @@
+import { HttpService } from "@nestjs/axios";
+import { Injectable, UnauthorizedException } from "@nestjs/common";
+import { ConfigService } from "@nestjs/config";
+import { verify } from 'jsonwebtoken'
+import { firstValueFrom } from "rxjs";
+@Injectable()
+export class GoogleService {
+
+    private GOOGLE_OAUTH_URL = 'https://oauth2.googleapis.com/token'
+    private GOOGLE_CLIENT_ID : string;
+    private GOOGLE_CLIENT_SECRET : string;
+    private GOOGLE_CALLBACK_URL : string;
+
+    constructor(
+        private readonly http : HttpService,
+        private readonly config: ConfigService
+    ) {
+        this.GOOGLE_CLIENT_ID = config.get<string>('GOOGLE_CLIENT_ID');
+        this.GOOGLE_CLIENT_SECRET = config.get<string>('GOOGLE_CLIENT_SECRET')
+        this.GOOGLE_CALLBACK_URL = config.get<string>('GOOGLE_CALLBACK_URL')
+    }
+
+    /**
+     * 구글 OAuth 로 authCode 를 보내 idToken 획득 후 email 추출
+     * @param code 
+     * @returns 
+     */
+    async getEmailFromCode(code: string) : Promise<string> {
+        if(!code) throw new UnauthorizedException('AuhorizationCode required')
+        const { data } = await firstValueFrom(this.http.post<{
+            id_token : string,
+        }>(this.GOOGLE_OAUTH_URL,{
+            code,
+            client_id : this.GOOGLE_CLIENT_ID,
+            client_secret : this.GOOGLE_CLIENT_SECRET,
+            redirect_uri : this.GOOGLE_CALLBACK_URL,
+            grant_type : 'authorization_code'
+        }))
+        const { id_token : idToken } = data;
+        const decoded = verify(idToken, '', { complete: true }) as {
+            payload: { email?: string };
+        };
+        const email = decoded?.payload?.email;
+        if (!email) {
+            throw new Error('Email not found in id_token');
+        }
+        return email;
+    }
+}
\ No newline at end of file
diff --git a/packages/server/src/domain/user/user.service.ts b/packages/server/src/domain/user/user.service.ts
index 04b7680..ca17f5a 100644
--- a/packages/server/src/domain/user/user.service.ts
+++ b/packages/server/src/domain/user/user.service.ts
@@ -20,12 +20,6 @@ export class UserService {
     return user;
   }
 
-  async getGoogleUser(email: string): Promise<UserEntity> {
-    const user = await this.userRepository.selectUserFromEmail({ email });
-    if (!user) throw new UnauthorizedException('존재하지 않는 회원입니다.');
-    return user;
-  }
-
   async validateRefresh(userId: string, refreshToken: string) {
     const user = await this.getUser({ userId });
     if (user.refreshToken !== refreshToken)
diff --git a/packages/server/src/util/random.ts b/packages/server/src/util/random.ts
index 9d4299e..7ff613a 100644
--- a/packages/server/src/util/random.ts
+++ b/packages/server/src/util/random.ts
@@ -1,3 +1,8 @@
+/**
+ * 랜덤한 문자열을 반환한다. ( 기본 길이 10 )
+ * @param length 
+ * @returns string
+ */
 export const randomString = (length: number = 10): string => {
   const chars =
     'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
diff --git a/yarn.lock b/yarn.lock
index c3f291a..8cf85b8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2218,6 +2218,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@nestjs/axios@npm:^3.1.3":
+  version: 3.1.3
+  resolution: "@nestjs/axios@npm:3.1.3"
+  peerDependencies:
+    "@nestjs/common": ^7.0.0 || ^8.0.0 || ^9.0.0 || ^10.0.0
+    axios: ^1.3.1
+    rxjs: ^6.0.0 || ^7.0.0
+  checksum: 10c0/3b3f5ecc9a17317daafbf6ffe0cb792c5bd44d9fe7c6e2bda5d87163b9c2ed05a71a49d4e2d810c455eaa94f25e85e63673da21d674917bd9c16dfb937771109
+  languageName: node
+  linkType: hard
+
 "@nestjs/cli@npm:^10.0.0":
   version: 10.4.5
   resolution: "@nestjs/cli@npm:10.4.5"
@@ -3553,7 +3564,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/jsonwebtoken@npm:*":
+"@types/jsonwebtoken@npm:*, @types/jsonwebtoken@npm:^9":
   version: 9.0.7
   resolution: "@types/jsonwebtoken@npm:9.0.7"
   dependencies:
@@ -4711,14 +4722,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"axios@npm:^1.7.7":
-  version: 1.7.7
-  resolution: "axios@npm:1.7.7"
+"axios@npm:^1.7.9":
+  version: 1.7.9
+  resolution: "axios@npm:1.7.9"
   dependencies:
     follow-redirects: "npm:^1.15.6"
     form-data: "npm:^4.0.0"
     proxy-from-env: "npm:^1.1.0"
-  checksum: 10c0/4499efc89e86b0b49ffddc018798de05fab26e3bf57913818266be73279a6418c3ce8f9e934c7d2d707ab8c095e837fc6c90608fb7715b94d357720b5f568af7
+  checksum: 10c0/b7a41e24b59fee5f0f26c1fc844b45b17442832eb3a0fb42dd4f1430eb4abc571fe168e67913e8a1d91c993232bd1d1ab03e20e4d1fee8c6147649b576fc1b0b
   languageName: node
   linkType: hard
 
@@ -8730,7 +8741,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"jsonwebtoken@npm:9.0.2, jsonwebtoken@npm:^9.0.0":
+"jsonwebtoken@npm:9.0.2, jsonwebtoken@npm:^9.0.0, jsonwebtoken@npm:^9.0.2":
   version: 9.0.2
   resolution: "jsonwebtoken@npm:9.0.2"
   dependencies:
@@ -11081,6 +11092,7 @@ __metadata:
     "@aws-sdk/client-s3": "npm:^3.682.0"
     "@aws-sdk/s3-request-presigner": "npm:^3.682.0"
     "@imgly/background-removal-node": "npm:^1.4.5"
+    "@nestjs/axios": "npm:^3.1.3"
     "@nestjs/cli": "npm:^10.0.0"
     "@nestjs/common": "npm:^10.0.0"
     "@nestjs/config": "npm:^3.3.0"
@@ -11094,6 +11106,7 @@ __metadata:
     "@nestjs/typeorm": "npm:^10.0.2"
     "@types/express": "npm:^4.17.17"
     "@types/jest": "npm:^29.5.2"
+    "@types/jsonwebtoken": "npm:^9"
     "@types/multer": "npm:^1.4.12"
     "@types/node": "npm:^20.3.1"
     "@types/node-imap": "npm:^0"
@@ -11104,7 +11117,7 @@ __metadata:
     "@types/uuid": "npm:^10"
     "@typescript-eslint/eslint-plugin": "npm:^6.0.0"
     "@typescript-eslint/parser": "npm:^6.0.0"
-    axios: "npm:^1.7.7"
+    axios: "npm:^1.7.9"
     class-transformer: "npm:^0.5.1"
     class-validator: "npm:^0.14.1"
     dotenv: "npm:^16.4.5"
@@ -11114,6 +11127,7 @@ __metadata:
     eslint-plugin-unused-imports: "npm:^4.1.4"
     ioredis: "npm:^5.4.1"
     jest: "npm:^29.5.0"
+    jsonwebtoken: "npm:^9.0.2"
     mysql2: "npm:^3.11.3"
     node-imap: "npm:^0.9.6"
     passport: "npm:^0.7.0"