diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarListReqVO.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarListReqVO.java
index fe587e0..3e9dd62 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarListReqVO.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarListReqVO.java
@@ -13,6 +13,15 @@ import static cn.iocoder.yudao.framework.common.util.date.DateUtils.FORMAT_YEAR_
 @Data
 public class MesCalCalendarListReqVO {
 
+    @Schema(description = "开始日期")
+    @DateTimeFormat(pattern = FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND)
+    private LocalDateTime startDay;
+
+    @Schema(description = "结束日期")
+    @DateTimeFormat(pattern = FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND)
+    private LocalDateTime endDay;
+
+    // TODO @AI：可以是 string，但是具体的 type，通过 public static final 定义常量，避免魔法字符串
     @Schema(description = "查询类型：TYPE-按分类，TEAM-按班组，USER-按个人", requiredMode = Schema.RequiredMode.REQUIRED, example = "TYPE")
     @NotEmpty(message = "查询类型不能为空")
     private String queryType;
@@ -26,12 +35,4 @@ public class MesCalCalendarListReqVO {
     @Schema(description = "用户编号（queryType=USER 时使用）", example = "1")
     private Long userId;
 
-    @Schema(description = "开始日期")
-    @DateTimeFormat(pattern = FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND)
-    private LocalDateTime startDay;
-
-    @Schema(description = "结束日期")
-    @DateTimeFormat(pattern = FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND)
-    private LocalDateTime endDay;
-
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarRespVO.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarRespVO.java
index 35e1e29..636e6de 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarRespVO.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/cal/calendar/vo/MesCalCalendarRespVO.java
@@ -15,9 +15,11 @@ import java.util.List;
 @AllArgsConstructor
 public class MesCalCalendarRespVO {
 
+    // TODO @AI：    private LocalDateTime day; 合适点，和 holiday 保持统一；
     @Schema(description = "日期，格式 yyyy-MM-dd", requiredMode = Schema.RequiredMode.REQUIRED, example = "2025-01-15")
     private String day;
 
+    // TODO @AI：可能在注释上，说下对应的
     @Schema(description = "轮班方式", example = "2")
     private Integer shiftType;
 
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/cal/calendar/MesCalCalendarServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/cal/calendar/MesCalCalendarServiceImpl.java
index 793fca7..de7b93c 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/cal/calendar/MesCalCalendarServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/cal/calendar/MesCalCalendarServiceImpl.java
@@ -142,8 +142,10 @@ public class MesCalCalendarServiceImpl implements MesCalCalendarService {
             List<MesCalCalendarRespVO.TeamShiftItem> items = dayShifts.stream()
                     .map(ts -> MesCalCalendarRespVO.TeamShiftItem.builder()
                             .teamId(ts.getTeamId())
+                            // TODO @AI：不用这种 default
                             .teamName(teamNameMap.getOrDefault(ts.getTeamId(), ""))
                             .shiftId(ts.getShiftId())
+                            // TODO @AI：不用这种 default
                             .shiftName(shiftMap.containsKey(ts.getShiftId())
                                     ? shiftMap.get(ts.getShiftId()).getName() : "")
                             .sort(ts.getSort())
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java
index 86e6404..15960df 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java
@@ -5,11 +5,17 @@ import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.mes.controller.admin.md.workstation.vo.MesMdWorkstationPageReqVO;
 import cn.iocoder.yudao.module.mes.controller.admin.md.workstation.vo.MesMdWorkstationSaveReqVO;
+import cn.iocoder.yudao.module.mes.dal.dataobject.md.workstation.MesMdWorkshopDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.md.workstation.MesMdWorkstationDO;
+import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseAreaDO;
+import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseLocationDO;
 import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationMachineMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationToolMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationWorkerMapper;
+import cn.iocoder.yudao.module.mes.service.wm.warehouse.MesWmWarehouseAreaService;
+import cn.iocoder.yudao.module.mes.service.wm.warehouse.MesWmWarehouseLocationService;
+import cn.iocoder.yudao.module.mes.service.wm.warehouse.MesWmWarehouseService;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -44,6 +50,15 @@ public class MesMdWorkstationServiceImpl implements MesMdWorkstationService {
     @Resource
     private MesMdWorkshopService workshopService;
 
+    @Resource
+    private MesWmWarehouseService warehouseService;
+
+    @Resource
+    private MesWmWarehouseLocationService locationService;
+
+    @Resource
+    private MesWmWarehouseAreaService areaService;
+
     @Override
     public Long createWorkstation(MesMdWorkstationSaveReqVO createReqVO) {
         // 校验编码唯一
@@ -51,7 +66,9 @@ public class MesMdWorkstationServiceImpl implements MesMdWorkstationService {
         // 校验名称唯一
         validateWorkstationNameUnique(null, createReqVO.getName());
         // 校验车间存在
-        workshopService.getWorkshop(createReqVO.getWorkshopId());
+        validateWorkshopExists(createReqVO.getWorkshopId());
+        // 校验仓库层级
+        validateWarehouseHierarchy(createReqVO);
 
         // 插入
         MesMdWorkstationDO workstation = BeanUtils.toBean(createReqVO, MesMdWorkstationDO.class);
@@ -68,7 +85,9 @@ public class MesMdWorkstationServiceImpl implements MesMdWorkstationService {
         // 校验名称唯一
         validateWorkstationNameUnique(updateReqVO.getId(), updateReqVO.getName());
         // 校验车间存在
-        workshopService.getWorkshop(updateReqVO.getWorkshopId());
+        validateWorkshopExists(updateReqVO.getWorkshopId());
+        // 校验仓库层级
+        validateWarehouseHierarchy(updateReqVO);
 
         // 更新
         MesMdWorkstationDO updateObj = BeanUtils.toBean(updateReqVO, MesMdWorkstationDO.class);
@@ -95,6 +114,69 @@ public class MesMdWorkstationServiceImpl implements MesMdWorkstationService {
         }
     }
 
+    private void validateWorkshopExists(Long workshopId) {
+        MesMdWorkshopDO workshop = workshopService.getWorkshop(workshopId);
+        if (workshop == null) {
+            throw exception(MD_WORKSHOP_NOT_EXISTS);
+        }
+    }
+
+    /**
+     * 校验仓库层级关系
+     *
+     * 仓库层级结构：仓库 -> 库位 -> 库区
+     * 校验规则：
+     * 1. 如果填写了库位，必须填写仓库，且库位必须属于该仓库
+     * 2. 如果填写了库区，必须填写库位，且库区必须属于该库位
+     *
+     * @param reqVO 工作站保存请求对象
+     */
+    private void validateWarehouseHierarchy(MesMdWorkstationSaveReqVO reqVO) {
+        // 1.1 获取仓库、库位、库区 ID
+        Long warehouseId = reqVO.getWarehouseId();
+        Long locationId = reqVO.getLocationId();
+        Long areaId = reqVO.getAreaId();
+        // 1.2  如果都为空，则无需校验
+        if (warehouseId == null && locationId == null && areaId == null) {
+            return;
+        }
+
+        // 2. 校验仓库是否存在
+        if (warehouseId != null) {
+            warehouseService.validateWarehouseExists(warehouseId);
+        }
+
+        // 3. 校验库位：如果填写了库位，必须填写仓库，且库位必须属于该仓库
+        MesWmWarehouseLocationDO location;
+        if (locationId != null) {
+            // 3.1 校验库位是否存在
+            location = locationService.validateWarehouseLocationExists(locationId);
+            // 3.2 校验必须填写仓库
+            if (warehouseId == null) {
+                throw exception(WM_WAREHOUSE_REQUIRED);
+            }
+            // 3.3 校验库位是否属于该仓库
+            if (ObjUtil.notEqual(location.getWarehouseId(), warehouseId)) {
+                throw exception(WM_WAREHOUSE_LOCATION_RELATION_INVALID);
+            }
+        }
+
+        // 4. 校验库区：如果填写了库区，必须填写库位，且库区必须属于该库位
+        if (areaId == null) {
+            return;
+        }
+        // 4.1 校验库区是否存在
+        MesWmWarehouseAreaDO area = areaService.validateWarehouseAreaExists(areaId);
+        // 4.2 校验必须填写库位
+        if (locationId == null) {
+            throw exception(WM_WAREHOUSE_LOCATION_REQUIRED);
+        }
+        // 4.3 校验库区是否属于该库位
+        if (ObjUtil.notEqual(area.getLocationId(), locationId)) {
+            throw exception(WM_WAREHOUSE_AREA_RELATION_INVALID);
+        }
+    }
+
     private void validateWorkstationCodeUnique(Long id, String code) {
         MesMdWorkstationDO workstation = workstationMapper.selectByCode(code);
         if (workstation == null) {