diff --git a/BE/src/postings/postings.controller.ts b/BE/src/postings/postings.controller.ts
index 8eba7d7..caf99c6 100644
--- a/BE/src/postings/postings.controller.ts
+++ b/BE/src/postings/postings.controller.ts
@@ -96,8 +96,9 @@ export class PostingsController {
     description: '검색어와 선택 태그의 교집합에 해당하는 게시글을 반환합니다.',
   })
   @ApiOkResponse({ schema: { example: search_OK } })
-  async search(@Query() searchPostingDto: SearchPostingDto) {
-    return this.postingsService.findAll(searchPostingDto);
+  async search(@Req() request, @Query() searchPostingDto: SearchPostingDto) {
+    const userId = request['user'].id;
+    return this.postingsService.findAll(userId, searchPostingDto);
   }
 
   @Get('titles')
diff --git a/BE/src/postings/postings.service.ts b/BE/src/postings/postings.service.ts
index 577c2fa..f329d5b 100644
--- a/BE/src/postings/postings.service.ts
+++ b/BE/src/postings/postings.service.ts
@@ -18,11 +18,13 @@ import { Report } from './entities/report.entity';
 import { Period, Season } from './postings.types';
 import { BLOCKING_LIMIT } from './postings.constants';
 import { StorageService } from 'src/storage/storage.service';
+import { BlockRepository } from 'src/users/block.repository';
 
 @Injectable()
 export class PostingsService {
   constructor(
     private readonly userRepository: UserRepository,
+    private readonly blockRepository: BlockRepository,
     private readonly postingsRepository: PostingsRepository,
     private readonly likedsRepository: LikedsRepository,
     private readonly reportsRepository: ReportsRepository,
@@ -44,8 +46,10 @@ export class PostingsService {
     return this.postingsRepository.save(posting);
   }
 
-  async findAll(dto: SearchPostingDto) {
+  async findAll(userId: string, dto: SearchPostingDto) {
+    const blockedIds = await this.findBlockedIds(userId);
     const postings = await this.postingsRepository.findAll(
+      blockedIds,
       dto.keyword,
       dto.sorting,
       dto.offset,
@@ -226,4 +230,9 @@ export class PostingsService {
       reports: posting.reports,
     };
   }
+
+  private async findBlockedIds(blocker: string) {
+    const blocks = await this.blockRepository.findByBlocker(blocker);
+    return blocks.map((block) => block.blocked.id);
+  }
 }
diff --git a/BE/src/postings/repositories/postings.repository.ts b/BE/src/postings/repositories/postings.repository.ts
index 7c4c280..732be33 100644
--- a/BE/src/postings/repositories/postings.repository.ts
+++ b/BE/src/postings/repositories/postings.repository.ts
@@ -36,6 +36,7 @@ export class PostingsRepository {
   }
 
   async findAll(
+    blockedIds: string[],
     keyword: string,
     sorting: Sorting,
     offset: number,
@@ -50,7 +51,14 @@ export class PostingsRepository {
     withWhos: WithWho[]
   ) {
     const conditions = ['p.title LIKE :keyword'];
-    let params: { [key: string]: string } = { keyword: `%${keyword}%` };
+    let params: { [key: string]: string | string[] } = {
+      keyword: `%${keyword}%`,
+    };
+
+    if (blockedIds.length > 0) {
+      conditions.push('p.writer NOT IN (:...blockedIds)');
+      params = { ...params, blockedIds };
+    }
 
     if (budget) {
       conditions.push('p.budget = :budget');
diff --git a/BE/src/users/block.repository.ts b/BE/src/users/block.repository.ts
new file mode 100644
index 0000000..6a92f95
--- /dev/null
+++ b/BE/src/users/block.repository.ts
@@ -0,0 +1,38 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Block } from './entities/block.entity';
+import { BLOCK_REPOSITORY } from './users.constants';
+import { Repository } from 'typeorm';
+import { User } from './entities/user.entity';
+
+@Injectable()
+export class BlockRepository {
+  constructor(
+    @Inject(BLOCK_REPOSITORY)
+    private blockRepository: Repository<Block>
+  ) {}
+
+  save(blocker: User, blocked: User) {
+    return this.blockRepository.save({ blocker, blocked });
+  }
+
+  findByBlocker(blocker: string) {
+    return this.blockRepository
+      .createQueryBuilder('b')
+      .leftJoinAndSelect('b.blocker', 'x')
+      .leftJoinAndSelect('b.blocked', 'y')
+      .where('b.blocker = :blocker', { blocker })
+      .getMany();
+  }
+
+  findByBlockerAndBlocked(blocker: string, blocked: string) {
+    return this.blockRepository
+      .createQueryBuilder('b')
+      .leftJoinAndSelect('b.blocker', 'x')
+      .leftJoinAndSelect('b.blocked', 'y')
+      .where('b.blocker = :blocker AND b.blocked = :blocked', {
+        blocker,
+        blocked,
+      })
+      .getOne();
+  }
+}
diff --git a/BE/src/users/entities/block.entity.ts b/BE/src/users/entities/block.entity.ts
new file mode 100644
index 0000000..8a07192
--- /dev/null
+++ b/BE/src/users/entities/block.entity.ts
@@ -0,0 +1,16 @@
+import { Entity, PrimaryGeneratedColumn, ManyToOne, JoinColumn } from 'typeorm';
+import { User } from './user.entity';
+
+@Entity()
+export class Block {
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
+
+  @ManyToOne(() => User, (user) => user.blockers, { nullable: false })
+  @JoinColumn({ name: 'blocker', referencedColumnName: 'id' })
+  blocker: User;
+
+  @ManyToOne(() => User, (user) => user.blockeds, { nullable: false })
+  @JoinColumn({ name: 'blocked', referencedColumnName: 'id' })
+  blocked: User;
+}
diff --git a/BE/src/users/entities/user.entity.ts b/BE/src/users/entities/user.entity.ts
index 07f2e06..c4145df 100644
--- a/BE/src/users/entities/user.entity.ts
+++ b/BE/src/users/entities/user.entity.ts
@@ -1,6 +1,7 @@
 import { Liked } from 'src/postings/entities/liked.entity';
 import { Posting } from 'src/postings/entities/posting.entity';
 import { Report } from 'src/postings/entities/report.entity';
+import { Block } from './block.entity';
 import {
   Entity,
   Column,
@@ -49,4 +50,10 @@ export class User {
   @ManyToOne(() => SocialLogin, (socialLogin) => socialLogin.users)
   @JoinColumn({ name: 'social_type', referencedColumnName: 'id' })
   socials: SocialLogin;
+
+  @OneToMany(() => Block, (block) => block.blocker)
+  blockers: Block[];
+
+  @OneToMany(() => Block, (block) => block.blocked)
+  blockeds: Block[];
 }
diff --git a/BE/src/users/users.constants.ts b/BE/src/users/users.constants.ts
index 3906300..c85ce48 100644
--- a/BE/src/users/users.constants.ts
+++ b/BE/src/users/users.constants.ts
@@ -1,2 +1,3 @@
 export const DATA_SOURCE = 'DATA_SOURCE';
 export const USERS_REPOSITORY = 'USERS_REPOSITORY';
+export const BLOCK_REPOSITORY = 'BLOCK_REPOSITORY';
diff --git a/BE/src/users/users.controller.ts b/BE/src/users/users.controller.ts
index 41506fe..34564b7 100644
--- a/BE/src/users/users.controller.ts
+++ b/BE/src/users/users.controller.ts
@@ -8,6 +8,9 @@ import {
   UploadedFile,
   UseGuards,
   Req,
+  Post,
+  Param,
+  ParseUUIDPipe,
 } from '@nestjs/common';
 import { UsersService } from './users.service';
 import {
@@ -110,4 +113,14 @@ export class UsersController {
   checkDuplicatedName(@Query('name') name: string) {
     return this.usersService.checkDuplicatedName(name);
   }
+
+  @Post(':id/block')
+  @ApiOperation({
+    summary: '특정 회원 차단',
+    description: '현재 유저가 id에 해당하는 회원을 차단합니다.',
+  })
+  blockUser(@Req() request, @Param('id', ParseUUIDPipe) id: string) {
+    const userId = request['user'].id;
+    return this.usersService.blockUser(userId, id);
+  }
 }
diff --git a/BE/src/users/users.module.ts b/BE/src/users/users.module.ts
index 05b2878..a535949 100644
--- a/BE/src/users/users.module.ts
+++ b/BE/src/users/users.module.ts
@@ -5,11 +5,12 @@ import { usersProvider } from './users.providers';
 import { UserRepository } from './users.repository';
 import { StorageModule } from '../storage/storage.module';
 import { DatabaseModule } from '../database/database.module';
+import { BlockRepository } from './block.repository';
 
 @Module({
   imports: [DatabaseModule, StorageModule],
   controllers: [UsersController],
-  providers: [UsersService, ...usersProvider, UserRepository],
-  exports: [UserRepository, UsersService],
+  providers: [UsersService, ...usersProvider, UserRepository, BlockRepository],
+  exports: [UserRepository, UsersService, BlockRepository],
 })
 export class UsersModule {}
diff --git a/BE/src/users/users.providers.ts b/BE/src/users/users.providers.ts
index be2217b..0376ec7 100644
--- a/BE/src/users/users.providers.ts
+++ b/BE/src/users/users.providers.ts
@@ -1,6 +1,11 @@
+import { Block } from './entities/block.entity';
 import { User } from './entities/user.entity';
 import { DataSource } from 'typeorm';
-import { DATA_SOURCE, USERS_REPOSITORY } from './users.constants';
+import {
+  BLOCK_REPOSITORY,
+  DATA_SOURCE,
+  USERS_REPOSITORY,
+} from './users.constants';
 
 export const usersProvider = [
   {
@@ -8,4 +13,9 @@ export const usersProvider = [
     useFactory: (dataSource: DataSource) => dataSource.getRepository(User),
     inject: [DATA_SOURCE],
   },
+  {
+    provide: BLOCK_REPOSITORY,
+    useFactory: (dataSource: DataSource) => dataSource.getRepository(Block),
+    inject: [DATA_SOURCE],
+  },
 ];
diff --git a/BE/src/users/users.service.ts b/BE/src/users/users.service.ts
index c6fc479..ef963e3 100644
--- a/BE/src/users/users.service.ts
+++ b/BE/src/users/users.service.ts
@@ -5,11 +5,13 @@ import { UserRepository } from './users.repository';
 import { CheckDuplicatedNameResponseDto } from './dto/check-duplicated-name-response.dto';
 import { UpdateUserDto } from './dto/update-user.dto';
 import { UpdateUserIpDto } from './dto/update-user-ip.dto';
+import { BlockRepository } from './block.repository';
 
 @Injectable()
 export class UsersService {
   constructor(
     private userRepository: UserRepository,
+    private blockRepository: BlockRepository,
     private readonly storageService: StorageService
   ) {}
 
@@ -113,4 +115,26 @@ export class UsersService {
   async updateUserIp(id: string, updateUserIpDto: UpdateUserIpDto) {
     return this.userRepository.update(id, updateUserIpDto);
   }
+
+  async blockUser(blocker: string, blocked: string) {
+    if (blocker === blocked) {
+      throw new BadRequestException('자기 자신을 차단할 수 없습니다.');
+    }
+
+    const blockedUser = await this.userRepository.findById(blocked);
+    if (!blockedUser) {
+      throw new BadRequestException('존재하지 않는 회원을 차단할 수 없습니다.');
+    }
+
+    const block = await this.blockRepository.findByBlockerAndBlocked(
+      blocker,
+      blocked
+    );
+    if (block) {
+      throw new BadRequestException('이미 차단한 회원입니다.');
+    }
+
+    const blockerUser = await this.userRepository.findById(blocker);
+    return this.blockRepository.save(blockerUser, blockedUser);
+  }
 }