diff --git a/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/OverviewServiceImpl.java b/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/OverviewServiceImpl.java
index fd5363d..c0f302c 100644
--- a/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/OverviewServiceImpl.java
+++ b/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/OverviewServiceImpl.java
@@ -95,6 +95,12 @@ public class OverviewServiceImpl implements OverviewService {
 		MonitoringPointCategorySearchParams categorySearchParam = new MonitoringPointCategorySearchParams();
 		categorySearchParam.setCompanyIdList(List.of(companyId));
 		List<MonitoringPointCategoryPageVO> categoryList = monitoringPointCategoryMapperExt.getListPage(categorySearchParam);
+
+		List<Long> allCategoryIds = categoryList.stream()
+				.map(MonitoringPointCategoryPageVO::getMonitoringPointCategoryId)
+				.filter(Objects::nonNull)
+				.toList();
+
 		//所有楼宇的监测点分类
 		Map<String, Object> allCategoryParamMap = new HashMap<>();
 		allCategoryParamMap.put("companyId", companyId);
@@ -113,16 +119,17 @@ public class OverviewServiceImpl implements OverviewService {
 						));
 
 		Map<Long, List<Long>> notExistingCategoryMap = new HashMap<>();
-		existingCategoryMap.forEach((buildingId, existingCategoryIds) -> {
-			List<Long> missingCategoryIds =
-					categoryList.stream()
-							.map(MonitoringPointCategoryPageVO::getMonitoringPointCategoryId)
-							.filter(Objects::nonNull)
-							.filter(id -> !existingCategoryIds.contains(id))
-							.collect(Collectors.toList());
-
-			notExistingCategoryMap.put(buildingId, missingCategoryIds);
-		});
+		for (OverviewVO building : buildingInfoList) {
+			Long buildingId = building.getBuildingId();
+			Set<Long> existingIds = existingCategoryMap.getOrDefault(buildingId, Collections.emptySet());
+			List<Long> missingIds = new ArrayList<>();
+			for (Long categoryId : allCategoryIds) {
+				if (!existingIds.contains(categoryId)) {
+					missingIds.add(categoryId);
+				}
+			}
+			notExistingCategoryMap.put(buildingId, missingIds);
+		}
 
 		return notExistingCategoryMap;
 	}