diff --git a/packages/backend/package.json b/packages/backend/package.json
index dcc3e21e..e98a13c9 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -47,6 +47,7 @@
     "socket.io": "^4.8.1",
     "typeorm": "^0.3.20",
     "unzipper": "^0.12.3",
+    "web-push": "^3.6.7",
     "winston": "^3.17.0",
     "winston-daily-rotate-file": "^5.0.0",
     "ws": "^8.18.0"
@@ -63,6 +64,7 @@
     "@types/passport-local": "^1.0.38",
     "@types/supertest": "^6.0.0",
     "@types/unzipper": "^0.10.10",
+    "@types/web-push": "^3.6.4",
     "@types/ws": "^8.5.13",
     "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^8.0.0",
diff --git a/packages/backend/src/alarm/alarm.controller.ts b/packages/backend/src/alarm/alarm.controller.ts
new file mode 100644
index 00000000..15dfc480
--- /dev/null
+++ b/packages/backend/src/alarm/alarm.controller.ts
@@ -0,0 +1,145 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Param,
+  Body,
+  Put,
+  Delete,
+  UseGuards,
+} from '@nestjs/common';
+import { ApiOkResponse, ApiOperation, ApiParam } from '@nestjs/swagger';
+import { AlarmService } from './alarm.service';
+import { AlarmRequest } from './dto/alarm.request';
+import { AlarmResponse, AlarmSuccessResponse } from './dto/alarm.response';
+import SessionGuard from '@/auth/session/session.guard';
+import { GetUser } from '@/common/decorator/user.decorator';
+import { User } from '@/user/domain/user.entity';
+
+@Controller('alarm')
+export class AlarmController {
+  constructor(private readonly alarmService: AlarmService) {}
+
+  @Post()
+  @ApiOperation({
+    summary: '알림 생성',
+    description: '각 정보에 맞는 알림을 생성한다.',
+  })
+  @ApiOkResponse({
+    description: '알림 생성 완료',
+    type: AlarmResponse,
+  })
+  @UseGuards(SessionGuard)
+  async create(
+    @Body() alarmRequest: AlarmRequest,
+    @GetUser() user: User,
+  ): Promise<AlarmResponse> {
+    const userId = user.id;
+
+    return await this.alarmService.create(alarmRequest, userId);
+  }
+
+  @Get(':id')
+  @ApiOperation({
+    summary: '등록된 알림 확인',
+    description: '등록된 알림을 알림 아이디를 기준으로 찾을 수 있다.',
+  })
+  @ApiOkResponse({
+    description: '알림 아이디와 동일한 알림 찾음',
+    type: AlarmResponse,
+  })
+  @ApiParam({
+    name: 'id',
+    type: Number,
+    description: '알림 아이디',
+    example: 1,
+  })
+  @UseGuards(SessionGuard)
+  async findOne(@Param('id') alarmId: number): Promise<AlarmResponse> {
+    return this.alarmService.findOne(alarmId);
+  }
+
+  @Put(':id')
+  @ApiOperation({
+    summary: '등록된 알림 업데이트',
+    description: '알림 아이디 기준으로 업데이트를 할 수 있다.',
+  })
+  @ApiOkResponse({
+    description: '아이디와 동일한 알림 업데이트',
+    type: AlarmResponse,
+  })
+  @ApiParam({
+    name: 'id',
+    type: Number,
+    description: '알림 아이디',
+    example: 1,
+  })
+  @UseGuards(SessionGuard)
+  async update(
+    @Param('id') alarmId: number,
+    @Body() updateData: AlarmRequest,
+  ): Promise<AlarmResponse> {
+    return this.alarmService.update(alarmId, updateData);
+  }
+
+  @Delete(':id')
+  @ApiParam({
+    name: 'id',
+    type: Number,
+    description: '알림 아이디',
+    example: 1,
+  })
+  @ApiOperation({
+    summary: '등록된 알림 삭제',
+    description: '알림 아이디 기준으로 삭제를 할 수 있다.',
+  })
+  @ApiOkResponse({
+    description: '아이디와 동일한 알림 삭제',
+    type: AlarmSuccessResponse,
+  })
+  @UseGuards(SessionGuard)
+  async delete(@Param('id') alarmId: number) {
+    await this.alarmService.delete(alarmId);
+
+    return new AlarmSuccessResponse('알림 삭제를 성공했습니다.');
+  }
+
+  @Get('user')
+  @ApiOperation({
+    summary: '사용자별 알림 조회',
+    description: '사용자 아이디를 기준으로 모든 알림을 조회한다.',
+  })
+  @ApiOkResponse({
+    description: '사용자에게 등록되어 있는 모든 알림 조회',
+    type: [AlarmResponse],
+  })
+  @UseGuards(SessionGuard)
+  async getByUserId(@GetUser() user: User) {
+    const userId = user.id;
+
+    return await this.alarmService.findByUserId(userId);
+  }
+
+  @Get('stock/:stockId')
+  @ApiOperation({
+    summary: '주식별 알림 조회',
+    description: '주식 아이디를 기준으로 알림을 조회한다.',
+  })
+  @ApiOkResponse({
+    description:
+      '주식 아이디에 등록되어 있는 알림 중 유저에 해당하는 알림 조회',
+    type: [AlarmResponse],
+  })
+  @ApiParam({
+    name: 'id',
+    type: String,
+    description: '주식 아이디',
+    example: '005930',
+  })
+  @UseGuards(SessionGuard)
+  async getByStockId(@Param('stockId') stockId: string, @GetUser() user: User) {
+    const userId = user.id;
+
+    return await this.alarmService.findByStockId(stockId, userId);
+  }
+}
diff --git a/packages/backend/src/alarm/alarm.module.ts b/packages/backend/src/alarm/alarm.module.ts
new file mode 100644
index 00000000..c283febc
--- /dev/null
+++ b/packages/backend/src/alarm/alarm.module.ts
@@ -0,0 +1,17 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { AlarmController } from './alarm.controller';
+import { AlarmService } from './alarm.service';
+import { AlarmSubscriber } from './alarm.subscriber';
+import { Alarm } from './domain/alarm.entity';
+import { PushSubscription } from './domain/subscription.entity';
+import { PushController } from './push.controller';
+import { PushService } from './push.service';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([Alarm, PushSubscription])],
+  controllers: [AlarmController, PushController],
+  providers: [AlarmService, PushService, AlarmSubscriber],
+  exports: [AlarmService],
+})
+export class AlarmModule {}
diff --git a/packages/backend/src/alarm/alarm.service.ts b/packages/backend/src/alarm/alarm.service.ts
new file mode 100644
index 00000000..a2b214ce
--- /dev/null
+++ b/packages/backend/src/alarm/alarm.service.ts
@@ -0,0 +1,115 @@
+import {
+  ForbiddenException,
+  Injectable,
+  NotFoundException,
+} from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { DataSource, Repository } from 'typeorm';
+import { Alarm } from './domain/alarm.entity';
+import { PushSubscription } from './domain/subscription.entity';
+import { AlarmRequest } from './dto/alarm.request';
+import { AlarmResponse } from './dto/alarm.response';
+import { PushService } from './push.service';
+import { User } from '@/user/domain/user.entity';
+
+@Injectable()
+export class AlarmService {
+  constructor(
+    @InjectRepository(Alarm)
+    private readonly alarmRepository: Repository<Alarm>,
+    private readonly dataSource: DataSource,
+    private readonly pushService: PushService,
+  ) {}
+
+  async create(alarmData: AlarmRequest, userId: number) {
+    return await this.dataSource.transaction(async (manager) => {
+      const repository = manager.getRepository(Alarm);
+      const user = await manager.findOne(User, { where: { id: userId } });
+      if (!user) {
+        throw new ForbiddenException('유저를 찾을 수 없습니다.');
+      }
+
+      const newAlarm = repository.create({
+        ...alarmData,
+        user,
+        stock: { id: alarmData.stockId },
+      });
+      const result = await repository.save(newAlarm);
+      return new AlarmResponse(result);
+    });
+  }
+
+  async findByUserId(userId: number) {
+    const result = await this.alarmRepository.find({
+      where: { user: { id: userId } },
+      relations: ['user', 'stock'],
+    });
+    return result.map((val) => new AlarmResponse(val));
+  }
+
+  async findByStockId(stockId: string, userId: number): Promise<Alarm[]> {
+    return await this.alarmRepository.find({
+      where: { stock: { id: stockId }, user: { id: userId } },
+      relations: ['user', 'stock'],
+    });
+  }
+
+  async findOne(id: number) {
+    const result = await this.alarmRepository.findOne({
+      where: { id },
+      relations: ['user', 'stock'],
+    });
+    if (result) return new AlarmResponse(result);
+    else throw new NotFoundException('등록된 알림을 찾을 수 없습니다.');
+  }
+
+  async update(id: number, updateData: AlarmRequest) {
+    const alarm = await this.alarmRepository.findOne({ where: { id } });
+    if (!alarm) {
+      throw new NotFoundException('등록된 알림을 찾을 수 없습니다.');
+    }
+
+    await this.alarmRepository.update(id, updateData);
+    const updatedAlarm = await this.alarmRepository.findOne({
+      where: { id },
+      relations: ['user', 'stock'],
+    });
+    if (updatedAlarm) return new AlarmResponse(updatedAlarm);
+    else
+      throw new NotFoundException(
+        `${id} : 업데이트할 알림을 찾을 수 없습니다.`,
+      );
+  }
+
+  async delete(id: number) {
+    const alarm = await this.alarmRepository.findOne({ where: { id } });
+    if (!alarm) {
+      throw new NotFoundException(`${id} : 삭제할 알림을 찾을 수 없습니다.`);
+    }
+
+    await this.alarmRepository.delete(id);
+  }
+
+  async sendPushNotification(alarm: Alarm): Promise<void> {
+    const { user, stock, targetPrice, targetVolume } = alarm;
+
+    const payload = {
+      title: '주식 알림',
+      body: `${stock.name}: ${
+        targetPrice ? `가격이 ${targetPrice}에 도달했습니다.` : ''
+      } ${targetVolume ? `거래량이 ${targetVolume}에 도달했습니다.` : ''}`,
+      stockId: stock.id,
+    };
+
+    const subscriptions = await this.dataSource.manager.findBy(
+      PushSubscription,
+      {
+        user: { id: user.id },
+      },
+    );
+
+    for (const subscription of subscriptions) {
+      await this.pushService.sendPushNotification(subscription, payload);
+    }
+  }
+}
diff --git a/packages/backend/src/alarm/alarm.subscriber.ts b/packages/backend/src/alarm/alarm.subscriber.ts
new file mode 100644
index 00000000..f5e15a6b
--- /dev/null
+++ b/packages/backend/src/alarm/alarm.subscriber.ts
@@ -0,0 +1,62 @@
+import { Inject, Injectable } from '@nestjs/common';
+import {
+  DataSource,
+  EntitySubscriberInterface,
+  EventSubscriber,
+  InsertEvent,
+} from 'typeorm';
+import { Logger } from 'winston';
+import { AlarmService } from './alarm.service';
+import { Alarm } from './domain/alarm.entity';
+import { StockMinutely } from '@/stock/domain/stockData.entity';
+
+@Injectable()
+@EventSubscriber()
+export class AlarmSubscriber
+  implements EntitySubscriberInterface<StockMinutely>
+{
+  constructor(
+    private readonly datasource: DataSource,
+    private readonly alarmService: AlarmService,
+    @Inject('winston') private readonly logger: Logger,
+  ) {
+    this.datasource.subscribers.push(this);
+  }
+
+  listenTo() {
+    return StockMinutely;
+  }
+
+  isValidAlarm(alarm: Alarm, entity: StockMinutely) {
+    if (alarm.alarmDate && alarm.alarmDate > entity.createdAt) {
+      return false;
+    } else {
+      if (alarm.targetPrice && alarm.targetPrice >= entity.open) {
+        return true;
+      }
+      if (alarm.targetVolume && alarm.targetVolume >= entity.volume) {
+        return true;
+      }
+      return false;
+    }
+  }
+
+  async afterInsert(event: InsertEvent<StockMinutely>) {
+    try {
+      const stockMinutely = event.entity;
+      const rawAlarms = await this.datasource.manager.find(Alarm, {
+        where: { stock: { id: stockMinutely.stock.id } },
+        relations: ['user', 'stock'],
+      });
+
+      const alarms = rawAlarms.filter((val) =>
+        this.isValidAlarm(val, stockMinutely),
+      );
+      for (const alarm of alarms) {
+        await this.alarmService.sendPushNotification(alarm);
+      }
+    } catch (error) {
+      this.logger.warn(`Failed to handle alarm afterInsert event : ${error}`);
+    }
+  }
+}
diff --git a/packages/backend/src/alarm/domain/alarm.entity.ts b/packages/backend/src/alarm/domain/alarm.entity.ts
new file mode 100644
index 00000000..4d33d215
--- /dev/null
+++ b/packages/backend/src/alarm/domain/alarm.entity.ts
@@ -0,0 +1,40 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  UpdateDateColumn,
+  ManyToOne,
+  JoinColumn,
+} from 'typeorm';
+import { Stock } from '@/stock/domain/stock.entity';
+import { User } from '@/user/domain/user.entity';
+
+@Entity()
+export class Alarm {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @ManyToOne(() => User, (user) => user.alarms, { onDelete: 'CASCADE' })
+  @JoinColumn({ name: 'user_id' })
+  user: User;
+
+  @ManyToOne(() => Stock, (stock) => stock.alarms, { onDelete: 'CASCADE' })
+  @JoinColumn({ name: 'stock_id' })
+  stock: Stock;
+
+  @Column({ type: 'int', name: 'target_price', nullable: true })
+  targetPrice?: number;
+
+  @Column({ type: 'bigint', name: 'target_volume', nullable: true })
+  targetVolume?: number;
+
+  @Column({ type: 'timestamp', name: 'alarm_date', nullable: true })
+  alarmDate?: Date;
+
+  @CreateDateColumn({ type: 'timestamp', name: 'created_at' })
+  createdAt: Date;
+
+  @UpdateDateColumn({ type: 'timestamp', name: 'updated_at' })
+  updatedAt: Date;
+}
diff --git a/packages/backend/src/alarm/domain/subscription.entity.ts b/packages/backend/src/alarm/domain/subscription.entity.ts
new file mode 100644
index 00000000..f3013973
--- /dev/null
+++ b/packages/backend/src/alarm/domain/subscription.entity.ts
@@ -0,0 +1,20 @@
+import { Column, Entity, ManyToOne, PrimaryGeneratedColumn } from 'typeorm';
+import { User } from '@/user/domain/user.entity';
+
+@Entity()
+export class PushSubscription {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @ManyToOne(() => User, (user) => user.subscriptions, { onDelete: 'CASCADE' })
+  user: User;
+
+  @Column({ type: 'text' })
+  endpoint: string;
+
+  @Column({ type: 'text' })
+  p256dh: string;
+
+  @Column({ type: 'text' })
+  auth: string;
+}
diff --git a/packages/backend/src/alarm/dto/alarm.request.ts b/packages/backend/src/alarm/dto/alarm.request.ts
new file mode 100644
index 00000000..9d8e5ad0
--- /dev/null
+++ b/packages/backend/src/alarm/dto/alarm.request.ts
@@ -0,0 +1,30 @@
+import { ApiProperty } from '@nestjs/swagger';
+
+export class AlarmRequest {
+  @ApiProperty({
+    description: '주식 아이디',
+    example: '005930',
+  })
+  stockId: string;
+
+  @ApiProperty({
+    description: '목표 가격',
+    example: 150.0,
+    required: false,
+  })
+  targetPrice?: number;
+
+  @ApiProperty({
+    description: '목표 거래량',
+    example: 1000,
+    required: false,
+  })
+  targetVolum?: number;
+
+  @ApiProperty({
+    description: '알림 종료 날짜',
+    example: '2024-12-01T00:00:00Z',
+    required: false,
+  })
+  alarmDate?: Date;
+}
diff --git a/packages/backend/src/alarm/dto/alarm.response.ts b/packages/backend/src/alarm/dto/alarm.response.ts
new file mode 100644
index 00000000..d2dc21fd
--- /dev/null
+++ b/packages/backend/src/alarm/dto/alarm.response.ts
@@ -0,0 +1,56 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { Alarm } from '../domain/alarm.entity';
+
+export class AlarmResponse {
+  @ApiProperty({
+    description: '알림 아이디',
+    example: 10,
+  })
+  alarmId: number;
+
+  @ApiProperty({
+    description: '주식 코드',
+    example: '005930',
+  })
+  stockId: string;
+
+  @ApiProperty({
+    description: '목표 주식 가격',
+    example: 50000,
+    nullable: true,
+  })
+  targetPrice?: number;
+
+  @ApiProperty({
+    description: '목표 주식 거래량',
+    example: 10,
+    nullable: true,
+  })
+  targetVolume?: number;
+
+  @ApiProperty({
+    description: '알림 만료일',
+    example: 10,
+    nullable: true,
+  })
+  alarmDate?: Date;
+
+  constructor(alarm: Alarm) {
+    this.alarmId = alarm.id;
+    this.stockId = alarm.stock.id;
+    this.targetPrice = alarm.targetPrice;
+    this.targetVolume = alarm.targetVolume;
+    this.alarmDate = alarm.alarmDate;
+  }
+}
+
+export class AlarmSuccessResponse {
+  @ApiProperty({
+    description: '성공 메시지',
+    example: 'success',
+  })
+  message: string;
+  constructor(message: string) {
+    this.message = message;
+  }
+}
diff --git a/packages/backend/src/alarm/dto/subscribe.request.ts b/packages/backend/src/alarm/dto/subscribe.request.ts
new file mode 100644
index 00000000..1ed453e0
--- /dev/null
+++ b/packages/backend/src/alarm/dto/subscribe.request.ts
@@ -0,0 +1,26 @@
+import { ApiProperty } from '@nestjs/swagger';
+//import { User } from '@/user/domain/user.entity';
+
+export class SubscriptionData {
+  //@ApiProperty({ type: () => User, description: '유저 아이디' })
+  //user: User;
+
+  @ApiProperty({
+    type: 'string',
+    description: '엔드 포인트 설정',
+  })
+  endpoint: string;
+
+  @ApiProperty({
+    type: 'object',
+    description: 'VAPID 키',
+    properties: {
+      p256dh: { type: 'string' },
+      auth: { type: 'string' },
+    },
+  })
+  keys: {
+    p256dh: string;
+    auth: string;
+  };
+}
diff --git a/packages/backend/src/alarm/dto/subscribe.response.ts b/packages/backend/src/alarm/dto/subscribe.response.ts
new file mode 100644
index 00000000..f6a9174d
--- /dev/null
+++ b/packages/backend/src/alarm/dto/subscribe.response.ts
@@ -0,0 +1,6 @@
+import { ApiProperty } from '@nestjs/swagger';
+
+export class SubscribeResponse {
+  @ApiProperty({ example: 'success', description: '성공 메시지' })
+  message: string;
+}
diff --git a/packages/backend/src/alarm/push.controller.ts b/packages/backend/src/alarm/push.controller.ts
new file mode 100644
index 00000000..991e187c
--- /dev/null
+++ b/packages/backend/src/alarm/push.controller.ts
@@ -0,0 +1,33 @@
+import { Body, Controller, Post, UseGuards } from '@nestjs/common';
+import { ApiOperation, ApiResponse } from '@nestjs/swagger';
+import { SubscriptionData } from './dto/subscribe.request';
+import { SubscribeResponse } from './dto/subscribe.response';
+import { PushService } from './push.service';
+import SessionGuard from '@/auth/session/session.guard';
+import { GetUser } from '@/common/decorator/user.decorator';
+import { User } from '@/user/domain/user.entity';
+
+@Controller('/push')
+export class PushController {
+  constructor(private readonly pushService: PushService) {}
+
+  @Post('subscribe')
+  @ApiOperation({
+    summary: '알림 서비스 초기 설정',
+    description: '유저가 로그인할 때 알림을 받을 수 있게 초기설정한다.',
+  })
+  @ApiResponse({
+    status: 201,
+    description: '알림 초기설정',
+    type: SubscribeResponse,
+  })
+  @UseGuards(SessionGuard)
+  async subscribe(
+    @Body() subscriptionData: SubscriptionData,
+    @GetUser() user: User,
+  ) {
+    const userId = user.id;
+
+    return await this.pushService.createSubscription(userId, subscriptionData);
+  }
+}
diff --git a/packages/backend/src/alarm/push.service.ts b/packages/backend/src/alarm/push.service.ts
new file mode 100644
index 00000000..ae61b8b5
--- /dev/null
+++ b/packages/backend/src/alarm/push.service.ts
@@ -0,0 +1,66 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { ApiTags } from '@nestjs/swagger';
+import { DataSource } from 'typeorm';
+import * as webPush from 'web-push';
+import { Logger } from 'winston';
+import { PushSubscription } from './domain/subscription.entity';
+import { SubscriptionData } from './dto/subscribe.request';
+import { SubscribeResponse } from './dto/subscribe.response';
+
+@ApiTags('Push Notifications')
+@Injectable()
+export class PushService {
+  constructor(
+    @Inject('winston') private readonly logger: Logger,
+    private readonly dataSource: DataSource,
+  ) {
+    webPush.setVapidDetails(
+      'mailto:noreply@juchum.info',
+      process.env.VAPID_PUBLIC_KEY!,
+      process.env.VAPID_PRIVATE_KEY!,
+    );
+  }
+
+  async sendPushNotification(
+    subscription: PushSubscription,
+    payload: object,
+  ): Promise<void> {
+    const pushPayload = JSON.stringify(payload);
+
+    try {
+      await webPush.sendNotification(
+        {
+          endpoint: subscription.endpoint,
+          keys: {
+            p256dh: subscription.p256dh,
+            auth: subscription.auth,
+          },
+        },
+        pushPayload,
+      );
+    } catch (error) {
+      this.logger.warn(
+        `Fail to send message user id [${subscription.user.id}] : ${pushPayload}`,
+        error,
+      );
+    }
+  }
+
+  async createSubscription(
+    userId: number,
+    subscriptionData: SubscriptionData,
+  ): Promise<SubscribeResponse> {
+    const newSubscription = this.dataSource.manager.create(PushSubscription, {
+      user: { id: userId },
+      endpoint: subscriptionData.endpoint,
+      p256dh: subscriptionData.keys.p256dh,
+      auth: subscriptionData.keys.auth,
+    });
+
+    await this.dataSource.manager.save(newSubscription);
+    const result: SubscribeResponse = {
+      message: 'Push subscription success',
+    };
+    return result;
+  }
+}
diff --git a/packages/backend/src/main.ts b/packages/backend/src/main.ts
index d9c69898..33b9f13a 100644
--- a/packages/backend/src/main.ts
+++ b/packages/backend/src/main.ts
@@ -15,7 +15,12 @@ const setCors = (app: INestApplication) => {
       'http://localhost:5173',
     ],
     methods: '*',
-    allowedHeaders: '*',
+    allowedHeaders: [
+      'Content-Type',
+      'Authorization',
+      'X-Requested-With',
+      'Accept',
+    ],
     credentials: true,
   });
 };
diff --git a/packages/backend/src/scraper/openapi/api/openapiFluctuationData.api.ts b/packages/backend/src/scraper/openapi/api/openapiFluctuationData.api.ts
index 55bf9301..cecce968 100644
--- a/packages/backend/src/scraper/openapi/api/openapiFluctuationData.api.ts
+++ b/packages/backend/src/scraper/openapi/api/openapiFluctuationData.api.ts
@@ -26,7 +26,6 @@ export class OpenapiFluctuationData {
     setTimeout(() => this.getFluctuationRankStocks(), 1000);
   }
 
-  @Cron('* 9-15 * * 1-5')
   @Cron('*/1 9-15 * * 1-5')
   async getFluctuationRankStocks() {
     await this.getFluctuationRankFromApi(true);
diff --git a/packages/backend/src/scraper/openapi/api/openapiToken.api.ts b/packages/backend/src/scraper/openapi/api/openapiToken.api.ts
index 437283d3..53b72d9c 100644
--- a/packages/backend/src/scraper/openapi/api/openapiToken.api.ts
+++ b/packages/backend/src/scraper/openapi/api/openapiToken.api.ts
@@ -1,4 +1,4 @@
-import { Global, Inject, Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Cron } from '@nestjs/schedule';
 import { DataSource } from 'typeorm';
 import { Logger } from 'winston';
@@ -7,7 +7,6 @@ import { openApiConfig } from '../config/openapi.config';
 import { OpenapiException } from '../util/openapiCustom.error';
 import { postOpenApi } from '../util/openapiUtil.api';
 
-@Global()
 @Injectable()
 export class OpenapiTokenApi {
   private config: (typeof openApiConfig)[] = [];
diff --git a/packages/backend/src/scraper/openapi/openapi-scraper.module.ts b/packages/backend/src/scraper/openapi/openapi-scraper.module.ts
index 7a6784ae..f9bed60e 100644
--- a/packages/backend/src/scraper/openapi/openapi-scraper.module.ts
+++ b/packages/backend/src/scraper/openapi/openapi-scraper.module.ts
@@ -8,6 +8,7 @@ import { OpenapiPeriodData } from './api/openapiPeriodData.api';
 import { OpenapiTokenApi } from './api/openapiToken.api';
 import { LiveData } from './liveData.service';
 import { OpenapiScraperService } from './openapi-scraper.service';
+import { WebsocketClient } from './websocket/websocketClient.websocket';
 import { OpenapiFluctuationData } from '@/scraper/openapi/api/openapiFluctuationData.api';
 import { OpenapiRankViewApi } from '@/scraper/openapi/api/openapiRankView.api';
 import {
@@ -54,6 +55,8 @@ import { StockLiveData } from '@/stock/domain/stockLiveData.entity';
     OpenapiRankViewApi,
     OpenapiQueue,
     OpenapiConsumer,
+    WebsocketClient,
+    LiveData,
   ],
   exports: [LiveData],
 })
diff --git a/packages/backend/src/stock/domain/stock.entity.ts b/packages/backend/src/stock/domain/stock.entity.ts
index 108cc993..82af0c2e 100644
--- a/packages/backend/src/stock/domain/stock.entity.ts
+++ b/packages/backend/src/stock/domain/stock.entity.ts
@@ -7,6 +7,7 @@ import {
   StockYearly,
 } from './stockData.entity';
 import { StockLiveData } from './stockLiveData.entity';
+import { Alarm } from '@/alarm/domain/alarm.entity';
 import { Like } from '@/chat/domain/like.entity';
 import { DateEmbedded } from '@/common/dateEmbedded.entity';
 import { FluctuationRankStock } from '@/stock/domain/FluctuationRankStock.entity';
@@ -61,4 +62,7 @@ export class Stock {
     (fluctuationRankStock) => fluctuationRankStock.stock,
   )
   fluctuationRankStocks?: FluctuationRankStock[];
+
+  @OneToMany(() => Alarm, (alarm) => alarm.stock)
+  alarms?: Alarm[];
 }
diff --git a/packages/backend/src/stock/stock.module.ts b/packages/backend/src/stock/stock.module.ts
index 673dbc56..2a374e66 100644
--- a/packages/backend/src/stock/stock.module.ts
+++ b/packages/backend/src/stock/stock.module.ts
@@ -24,8 +24,9 @@ import {
 import { StockDetailService } from './stockDetail.service';
 import { StockLiveDataSubscriber } from './stockLiveData.subscriber';
 import { StockRateIndexService } from './stockRateIndex.service';
+import { AlarmModule } from '@/alarm/alarm.module';
+import { Alarm } from '@/alarm/domain/alarm.entity';
 import { ScraperModule } from '@/scraper/scraper.module';
-
 @Module({
   imports: [
     TypeOrmModule.forFeature([
@@ -37,7 +38,9 @@ import { ScraperModule } from '@/scraper/scraper.module';
       StockYearly,
       StockLiveData,
       StockDetail,
+      Alarm,
     ]),
+    AlarmModule,
     ScraperModule,
   ],
   controllers: [StockController],
diff --git a/packages/backend/src/stock/stockLiveData.subscriber.ts b/packages/backend/src/stock/stockLiveData.subscriber.ts
index f44ffe35..f22315be 100644
--- a/packages/backend/src/stock/stockLiveData.subscriber.ts
+++ b/packages/backend/src/stock/stockLiveData.subscriber.ts
@@ -39,7 +39,9 @@ export class StockLiveDataSubscriber
 
       this.stockGateway.onUpdateStock(stockId, price, change, volume);
     } catch (error) {
-      this.logger.warn(`Failed to handle afterInsert event : ${error}`);
+      this.logger.warn(
+        `Failed to handle stock live data afterInsert event : ${error}`,
+      );
     }
   }
 
@@ -55,6 +57,7 @@ export class StockLiveDataSubscriber
           changeRate: change,
           volume: volume,
         } = updatedStockLiveData;
+
         this.stockGateway.onUpdateStock(stockId, price, change, volume);
       } else {
         this.logger.warn(
@@ -62,7 +65,9 @@ export class StockLiveDataSubscriber
         );
       }
     } catch (error) {
-      this.logger.warn(`Failed to handle afterUpdate event : ${error}`);
+      this.logger.warn(
+        `Failed to handle stock live data afterUpdate event : ${error}`,
+      );
     }
   }
 
diff --git a/packages/backend/src/user/domain/user.entity.ts b/packages/backend/src/user/domain/user.entity.ts
index 91a02c0b..f5d53276 100644
--- a/packages/backend/src/user/domain/user.entity.ts
+++ b/packages/backend/src/user/domain/user.entity.ts
@@ -5,6 +5,8 @@ import {
   OneToMany,
   PrimaryGeneratedColumn,
 } from 'typeorm';
+import { Alarm } from '@/alarm/domain/alarm.entity';
+import { PushSubscription } from '@/alarm/domain/subscription.entity';
 import { Mention } from '@/chat/domain/mention.entity';
 import { DateEmbedded } from '@/common/dateEmbedded.entity';
 import { UserStock } from '@/stock/domain/userStock.entity';
@@ -45,6 +47,12 @@ export class User {
   @OneToMany(() => UserStock, (userStock) => userStock.user)
   userStocks: UserStock[];
 
+  @OneToMany(() => Alarm, (alarm) => alarm.user)
+  alarms: Alarm[];
+
+  @OneToMany(() => PushSubscription, (subscription) => subscription.user)
+  subscriptions: PushSubscription[];
+
   @OneToMany(() => Mention, (mention) => mention.user)
   mentions: Mention[];
 }
diff --git a/yarn.lock b/yarn.lock
index f1be2c17..bd4f38fe 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2286,6 +2286,13 @@
   resolved "https://registry.yarnpkg.com/@types/validator/-/validator-13.12.2.tgz#760329e756e18a4aab82fc502b51ebdfebbe49f5"
   integrity sha512-6SlHBzUW8Jhf3liqrGGXyTJSIFe4nqlJ5A5KaMZ2l/vbM3Wh3KSybots/wfWVzNLK4D1NZluDlSQIbIEPx6oyA==
 
+"@types/web-push@^3.6.4":
+  version "3.6.4"
+  resolved "https://registry.yarnpkg.com/@types/web-push/-/web-push-3.6.4.tgz#4c6e10d3963ba51e7b4b8fff185f43612c0d1346"
+  integrity sha512-GnJmSr40H3RAnj0s34FNTcJi1hmWFV5KXugE0mYWnYhgTAHLJ/dJKAwDmvPJYMke0RplY2XE9LnM4hqSqKIjhQ==
+  dependencies:
+    "@types/node" "*"
+
 "@types/ws@^8.5.13":
   version "8.5.13"
   resolved "https://registry.yarnpkg.com/@types/ws/-/ws-8.5.13.tgz#6414c280875e2691d0d1e080b05addbf5cb91e20"
@@ -2666,6 +2673,13 @@ acorn@^8.11.0, acorn@^8.14.0, acorn@^8.4.1, acorn@^8.7.1, acorn@^8.8.2, acorn@^8
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.14.0.tgz#063e2c70cac5fb4f6467f0b11152e04c682795b0"
   integrity sha512-cl669nCJTZBsL97OF4kUQm5g5hC2uihk0NxY3WENAC0TYdILVkAyHymAntgxGkl7K+t0cXIrH5siy5S4XkFycA==
 
+agent-base@^7.0.2:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-7.1.1.tgz#bdbded7dfb096b751a2a087eeeb9664725b2e317"
+  integrity sha512-H0TSyFNDMomMNJQBn8wFV5YC/2eJ+VXECwOadZJT554xP6cODZHPX3H9QMQECxvrgiSOP1pHjy1sMWQVYJOUOA==
+  dependencies:
+    debug "^4.3.4"
+
 ajv-formats@2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ajv-formats/-/ajv-formats-2.1.1.tgz#6e669400659eb74973bbf2e33327180a0996b520"
@@ -2912,6 +2926,16 @@ asap@^2.0.0:
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
   integrity sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==
 
+asn1.js@^5.3.0:
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-5.4.1.tgz#11a980b84ebb91781ce35b0fdc2ee294e3783f07"
+  integrity sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==
+  dependencies:
+    bn.js "^4.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+    safer-buffer "^2.1.0"
+
 assertion-error@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-2.0.1.tgz#f641a196b335690b1070bf00b6e7593fec190bf7"
@@ -3088,6 +3112,11 @@ bluebird@~3.7.2:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
   integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
 
+bn.js@^4.0.0:
+  version "4.12.1"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.1.tgz#215741fe3c9dba2d7e12c001d0cfdbae43975ba7"
+  integrity sha512-k8TVBiPkPJT9uHLdOKfFpqcfprwBFOAAXXozRubr7R7PfIuKvQlzcI4M0pALeqXN09vdaMbUdUj+pass+uULAg==
+
 body-parser@1.20.3:
   version "1.20.3"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.20.3.tgz#1953431221c6fb5cd63c4b36d53fab0928e548c6"
@@ -3157,6 +3186,11 @@ bser@2.1.1:
   dependencies:
     node-int64 "^0.4.0"
 
+buffer-equal-constant-time@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz#f8e71132f7ffe6e01a5c9697a4c6f3e48d5cc819"
+  integrity sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA==
+
 buffer-from@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.2.tgz#2b146a6fd72e80b4f55d255f35ed59a3a9a41bd5"
@@ -3810,6 +3844,13 @@ debug@2.6.9:
   dependencies:
     ms "2.0.0"
 
+debug@4, debug@^4.1.0, debug@^4.1.1, debug@^4.3.1, debug@^4.3.2, debug@^4.3.4, debug@~4.3.1, debug@~4.3.2, debug@~4.3.4:
+  version "4.3.7"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.7.tgz#87945b4151a011d76d95a198d7111c865c360a52"
+  integrity sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==
+  dependencies:
+    ms "^2.1.3"
+
 debug@^3.2.7:
   version "3.2.7"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.7.tgz#72580b7e9145fb39b6676f9c5e5fb100b934179a"
@@ -3817,13 +3858,6 @@ debug@^3.2.7:
   dependencies:
     ms "^2.1.1"
 
-debug@^4.1.0, debug@^4.1.1, debug@^4.3.1, debug@^4.3.2, debug@^4.3.4, debug@~4.3.1, debug@~4.3.2, debug@~4.3.4:
-  version "4.3.7"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.7.tgz#87945b4151a011d76d95a198d7111c865c360a52"
-  integrity sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==
-  dependencies:
-    ms "^2.1.3"
-
 dedent@0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
@@ -4008,6 +4042,13 @@ eastasianwidth@^0.2.0:
   resolved "https://registry.yarnpkg.com/eastasianwidth/-/eastasianwidth-0.2.0.tgz#696ce2ec0aa0e6ea93a397ffcf24aa7840c827cb"
   integrity sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==
 
+ecdsa-sig-formatter@1.0.11:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz#ae0f0fa2d85045ef14a817daa3ce9acd0489e5bf"
+  integrity sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==
+  dependencies:
+    safe-buffer "^5.0.1"
+
 editor@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/editor/-/editor-1.0.0.tgz#60c7f87bd62bcc6a894fa8ccd6afb7823a24f742"
@@ -5286,6 +5327,19 @@ http-errors@2.0.0:
     statuses "2.0.1"
     toidentifier "1.0.1"
 
+http_ece@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/http_ece/-/http_ece-1.2.0.tgz#84d5885f052eae8c9b075eee4d2eb5105f114479"
+  integrity sha512-JrF8SSLVmcvc5NducxgyOrKXe3EsyHMgBFgSaIUGmArKe+rwr0uphRkRXvwiom3I+fpIfoItveHrfudL8/rxuA==
+
+https-proxy-agent@^7.0.0:
+  version "7.0.5"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-7.0.5.tgz#9e8b5013873299e11fab6fd548405da2d6c602b2"
+  integrity sha512-1e4Wqeblerz+tMKPIq2EMGiiWW1dIjZOksyHWSUm1rmuvw/how9hBHZ38lAGj5ID4Ik6EdkOw7NmWPy6LAwalw==
+  dependencies:
+    agent-base "^7.0.2"
+    debug "4"
+
 human-signals@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/human-signals/-/human-signals-2.1.0.tgz#dc91fcba42e4d06e4abaed33b3e7a3c02f514ea0"
@@ -6252,6 +6306,23 @@ jsonparse@^1.2.0:
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
   integrity sha512-POQXvpdL69+CluYsillJ7SUhKvytYjW9vG/GKpnf+xP8UWgYEM/RaMzHHofbALDiKbbP1W8UEYmgGl39WkPZsg==
 
+jwa@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/jwa/-/jwa-2.0.0.tgz#a7e9c3f29dae94027ebcaf49975c9345593410fc"
+  integrity sha512-jrZ2Qx916EA+fq9cEAeCROWPTfCwi1IVHqT2tapuqLEVVDKFDENFw1oL+MwrTvH6msKxsd1YTDVw6uKEcsrLEA==
+  dependencies:
+    buffer-equal-constant-time "1.0.1"
+    ecdsa-sig-formatter "1.0.11"
+    safe-buffer "^5.0.1"
+
+jws@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/jws/-/jws-4.0.0.tgz#2d4e8cf6a318ffaa12615e9dec7e86e6c97310f4"
+  integrity sha512-KDncfTmOZoOMTFG4mBlG0qUIOlc03fmzH+ru6RgYVZhPkyiy/92Owlt/8UEN+a4TXR1FQetfIpJE8ApdvdVxTg==
+  dependencies:
+    jwa "^2.0.0"
+    safe-buffer "^5.0.1"
+
 keyv@^4.5.3, keyv@^4.5.4:
   version "4.5.4"
   resolved "https://registry.yarnpkg.com/keyv/-/keyv-4.5.4.tgz#a879a99e29452f942439f2a405e3af8b31d4de93"
@@ -6615,6 +6686,11 @@ min-indent@^1.0.0, min-indent@^1.0.1:
   resolved "https://registry.yarnpkg.com/min-indent/-/min-indent-1.0.1.tgz#a63f681673b30571fbe8bc25686ae746eefa9869"
   integrity sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==
 
+minimalistic-assert@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
+  integrity sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==
+
 minimatch@^3.0.4, minimatch@^3.0.5, minimatch@^3.1.1, minimatch@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.1.2.tgz#19cd194bfd3e428f049a70817c038d89ab4be35b"
@@ -6641,7 +6717,7 @@ minimist@1.2.7:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.7.tgz#daa1c4d91f507390437c6a8bc01078e7000c4d18"
   integrity sha512-bzfL1YUZsP41gmu/qjrEk0Q6i2ix/cVeAhbCbqH9u3zYutS1cLg00qhrD0M2MVdCcx4Sc0UpP2eBWo9rotpq6g==
 
-minimist@^1.2.0, minimist@^1.2.6, minimist@^1.2.8:
+minimist@^1.2.0, minimist@^1.2.5, minimist@^1.2.6, minimist@^1.2.8:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.8.tgz#c1a464e7693302e082a075cee0c057741ac4772c"
   integrity sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==
@@ -7716,7 +7792,7 @@ safe-stable-stringify@^2.3.1:
   resolved "https://registry.yarnpkg.com/safe-stable-stringify/-/safe-stable-stringify-2.5.0.tgz#4ca2f8e385f2831c432a719b108a3bf7af42a1dd"
   integrity sha512-b3rppTKm9T+PsVCBEOUR46GWI7fdOs00VKZ1+9c1EWDaDMvjQc6tUwuFyIprgGgTcWoVHSKrU8H31ZHA2e0RHA==
 
-"safer-buffer@>= 2.1.2 < 3", "safer-buffer@>= 2.1.2 < 3.0.0":
+"safer-buffer@>= 2.1.2 < 3", "safer-buffer@>= 2.1.2 < 3.0.0", safer-buffer@^2.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
@@ -8833,6 +8909,17 @@ wcwidth@^1.0.1:
   dependencies:
     defaults "^1.0.3"
 
+web-push@^3.6.7:
+  version "3.6.7"
+  resolved "https://registry.yarnpkg.com/web-push/-/web-push-3.6.7.tgz#5f5e645951153e37ef90a6ddea5c150ea0f709e1"
+  integrity sha512-OpiIUe8cuGjrj3mMBFWY+e4MMIkW3SVT+7vEIjvD9kejGUypv8GPDf84JdPWskK8zMRIJ6xYGm+Kxr8YkPyA0A==
+  dependencies:
+    asn1.js "^5.3.0"
+    http_ece "1.2.0"
+    https-proxy-agent "^7.0.0"
+    jws "^4.0.0"
+    minimist "^1.2.5"
+
 webidl-conversions@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"