diff --git a/apps/server/src/occupancies/dto/occupancy.dto.ts b/apps/server/src/occupancies/dto/occupancy.dto.ts
index d430610..55cd56a 100644
--- a/apps/server/src/occupancies/dto/occupancy.dto.ts
+++ b/apps/server/src/occupancies/dto/occupancy.dto.ts
@@ -25,6 +25,13 @@ export class CheckInDto {
   @IsOptional()
   @IsInt()
   tenantId?: number;
+  @IsOptional()
+  @IsInt()
+  bedId?: number;  // 后续改 required
+
+  @IsOptional()
+  @IsInt()
+  lockerId?: number;
 }
 
 export class CheckOutDto {
@@ -51,6 +58,13 @@ export class TransferRoomDto {
   @IsString()
   oldBillingEndDate?: string; // 旧房计费截止日，默认=transferDate
 
+  @IsOptional()
+  @IsInt()
+  newBedId?: number;
+
+  @IsOptional()
+  @IsInt()
+  newLockerId?: number;
   @IsOptional()
   @IsString()
   newBillingStartDate?: string; // 新房计费起始日，默认=transferDate次日
diff --git a/apps/server/src/occupancies/occupancies.module.ts b/apps/server/src/occupancies/occupancies.module.ts
index efad34f..a8f1bb5 100644
--- a/apps/server/src/occupancies/occupancies.module.ts
+++ b/apps/server/src/occupancies/occupancies.module.ts
@@ -4,6 +4,8 @@ import { Occupancy } from '../entities/occupancy.entity';
 import { Room } from '../entities/room.entity';
 import { Student } from '../entities/student.entity';
 import { Deposit } from '../entities/deposit.entity';
+import { Bed } from '../entities/bed.entity';
+import { Locker } from '../entities/locker.entity';
 import { OccupanciesService } from './occupancies.service';
 import { OccupanciesController } from './occupancies.controller';
 import { OperationLogsModule } from '../operation-logs/operation-logs.module';
@@ -11,7 +13,7 @@ import { NotificationsModule } from '../notifications/notifications.module';
 import { CommonModule } from '../common/common.module';
 
 @Module({
-  imports: [TypeOrmModule.forFeature([Occupancy, Room, Student, Deposit]), OperationLogsModule, NotificationsModule, CommonModule],
+  imports: [TypeOrmModule.forFeature([Occupancy, Room, Student, Deposit, Bed, Locker]), OperationLogsModule, NotificationsModule, CommonModule],
   controllers: [OccupanciesController],
   providers: [OccupanciesService],
   exports: [OccupanciesService],
diff --git a/apps/server/src/occupancies/occupancies.service.ts b/apps/server/src/occupancies/occupancies.service.ts
index 83aed7d..08e7914 100644
--- a/apps/server/src/occupancies/occupancies.service.ts
+++ b/apps/server/src/occupancies/occupancies.service.ts
@@ -12,6 +12,8 @@ import {
 import { Occupancy } from '../entities/occupancy.entity';
 import { Room } from '../entities/room.entity';
 import { Student } from '../entities/student.entity';
+import { Bed } from '../entities/bed.entity';
+import { Locker } from '../entities/locker.entity';
 import { Deposit } from '../entities/deposit.entity';
 import { CheckInDto, CheckOutDto, TransferRoomDto } from './dto/occupancy.dto';
 import { RoomsService } from '../rooms/rooms.service';
@@ -24,6 +26,8 @@ export class OccupanciesService {
     @InjectRepository(Room) private roomRepo: Repository<Room>,
     @InjectRepository(Student) private studentRepo: Repository<Student>,
     @InjectRepository(Deposit) private depositRepo: Repository<Deposit>,
+    @InjectRepository(Bed) private bedRepo: Repository<Bed>,
+    @InjectRepository(Locker) private lockerRepo: Repository<Locker>,
     private dataSource: DataSource,
     private readonly scope: CampusScope,
   ) {}
@@ -33,6 +37,8 @@ export class OccupanciesService {
       .createQueryBuilder('o')
       .leftJoinAndSelect('o.student', 'student')
       .leftJoinAndSelect('o.room', 'room')
+      .leftJoinAndSelect('o.bed', 'bed')
+      .leftJoinAndSelect('o.locker', 'locker')
       .orderBy('o.checkInDate', 'DESC');
     const scopeIds = await this.scope.getScopeDepartmentIds();
     if (scopeIds) {
@@ -66,6 +72,20 @@ export class OccupanciesService {
       );
     }
 
+    // 床位校验
+    if (dto.bedId) {
+      const bed = await this.bedRepo.findOne({ where: { id: dto.bedId, roomId: dto.roomId } });
+      if (!bed) throw new BadRequestException('床位不存在或不属于该宿舍');
+      if (bed.status !== 'available') throw new BadRequestException('该床位已被占用或维修中');
+    }
+
+    // 柜子校验
+    if (dto.lockerId) {
+      const locker = await this.lockerRepo.findOne({ where: { id: dto.lockerId, roomId: dto.roomId } });
+      if (!locker) throw new BadRequestException('柜子不存在或不属于该宿舍');
+      if (locker.status !== 'available') throw new BadRequestException('该柜子已被占用或维修中');
+    }
+
     const occ = this.repo.create({
       studentId: dto.studentId,
       roomId: dto.roomId,
@@ -74,10 +94,20 @@ export class OccupanciesService {
       rentalType: dto.rentalType,
       tenantId: dto.tenantId,
       notes: dto.notes,
+      bedId: dto.bedId,
+      lockerId: dto.lockerId,
     });
     occ.departmentId = room.departmentId;
     const saved = await this.repo.save(occ);
 
+    // 更新床位/柜子状态
+    if (dto.bedId) {
+      await this.bedRepo.update(dto.bedId, { status: 'occupied' });
+    }
+    if (dto.lockerId) {
+      await this.lockerRepo.update(dto.lockerId, { status: 'occupied' });
+    }
+
     // 首位入住者确定房间性别
     if (student.gender && !room.gender) {
       await this.roomRepo.update(room.id, { gender: student.gender });
@@ -100,6 +130,14 @@ export class OccupanciesService {
     occ.checkOutReason = dto.checkOutReason || '';
     await this.repo.save(occ);
 
+    // 释放床位/柜子
+    if (occ.bedId) {
+      await this.bedRepo.update(occ.bedId, { status: 'available' });
+    }
+    if (occ.lockerId) {
+      await this.lockerRepo.update(occ.lockerId, { status: 'available' });
+    }
+
     // 更新宿舍状态
     await this.roomRepo.update(occ.roomId, { status: 'available' });
 
@@ -128,6 +166,13 @@ export class OccupanciesService {
       oldOcc.billingEndDate = dto.oldBillingEndDate || dto.transferDate;
       oldOcc.checkOutReason = dto.reason || '换房';
       await runner.manager.save(oldOcc);
+      // 释放旧床位/柜子
+      if (oldOcc.bedId) {
+        await runner.manager.update(Bed, oldOcc.bedId, { status: 'available' });
+      }
+      if (oldOcc.lockerId) {
+        await runner.manager.update(Locker, oldOcc.lockerId, { status: 'available' });
+      }
       await runner.manager.update(Room, oldOcc.roomId, { status: 'available' });
       // 旧房如果已无在住人员，重置性别
       const oldRemaining = await runner.manager.count(Occupancy, {
@@ -151,6 +196,18 @@ export class OccupanciesService {
         throw new BadRequestException(`目标宿舍为${newRoom.gender}生寝室，无法换入`);
       }
 
+      // 新床位校验
+      if (dto.newBedId) {
+        const newBed = await runner.manager.findOne(Bed, { where: { id: dto.newBedId, roomId: dto.newRoomId } });
+        if (!newBed) throw new BadRequestException('目标床位不存在或不属于目标宿舍');
+        if (newBed.status !== 'available') throw new BadRequestException('目标床位已被占用');
+      }
+      if (dto.newLockerId) {
+        const newLocker = await runner.manager.findOne(Locker, { where: { id: dto.newLockerId, roomId: dto.newRoomId } });
+        if (!newLocker) throw new BadRequestException('目标柜子不存在或不属于目标宿舍');
+        if (newLocker.status !== 'available') throw new BadRequestException('目标柜子已被占用');
+      }
+
       // 计算新房计费起始日：默认为换房日期次日
       const transferDate = new Date(dto.transferDate);
       const nextDay = new Date(transferDate);
@@ -166,9 +223,19 @@ export class OccupanciesService {
         rentalType: oldOcc.rentalType,
         tenantId: oldOcc.tenantId,
         notes: `从${oldOcc.roomId}号房换入`,
+        bedId: dto.newBedId,
+        lockerId: dto.newLockerId,
       });
       await runner.manager.save(newOcc);
 
+      // 更新新床位/柜子状态
+      if (dto.newBedId) {
+        await runner.manager.update(Bed, dto.newBedId, { status: 'occupied' });
+      }
+      if (dto.newLockerId) {
+        await runner.manager.update(Locker, dto.newLockerId, { status: 'occupied' });
+      }
+
       // 首位入住者确定新房性别
       if (student?.gender && !newRoom.gender) {
         await runner.manager.update(Room, newRoom.id, { gender: student.gender });