diff --git a/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/line/AlarmDetailServiceImpl.java b/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/line/AlarmDetailServiceImpl.java
index e19fbc32c..82814baf6 100644
--- a/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/line/AlarmDetailServiceImpl.java
+++ b/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/line/AlarmDetailServiceImpl.java
@@ -79,7 +79,7 @@ public class AlarmDetailServiceImpl extends MppServiceImpl<AlarmMapper, RMpTarge
 
     @Override
     public List<AlarmDetailDayDTO> getAvgDiffData(String time,List<String> list) {
-        String endTime = PublicUtil.getLastYearDay(time);
+        String endTime = PublicUtil.getYesterday(time);
         //计算本年的rm值
         return this.baseMapper.getAvgDiffData(endTime,time,list);
     }