diff --git a/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/FavoritedDeviceServiceImpl.java b/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/FavoritedDeviceServiceImpl.java
index 5b25350..523b469 100644
--- a/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/FavoritedDeviceServiceImpl.java
+++ b/dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/FavoritedDeviceServiceImpl.java
@@ -117,9 +117,10 @@ public class FavoritedDeviceServiceImpl implements FavoritedDeviceService {
 				data = alarmDataMap.get(deviceId);
 			}
 
-			if (data != null) {
-				resultList.add(data);
+			if (data == null) {
+				data = vo; // 保留原 VO，避免返回条数不足
 			}
+			resultList.add(data);
 		}
 
 		return new PageInfo<>(resultList);