diff --git a/src/main/java/com/biutag/supervision/util/DateCompareRangeUtil.java b/src/main/java/com/biutag/supervision/util/DateCompareRangeUtil.java
index 200dad2..802ef90 100644
--- a/src/main/java/com/biutag/supervision/util/DateCompareRangeUtil.java
+++ b/src/main/java/com/biutag/supervision/util/DateCompareRangeUtil.java
@@ -36,7 +36,7 @@ public class DateCompareRangeUtil {
         );
 
         // 环比：向前推 N 天，且按你给的口径：momEnd = beginDate 当天 23:59:59.999（与本期重叠）
-        LocalDate momEndDate = beginDate;
+        LocalDate momEndDate = beginDate.minusDays(1);
         LocalDate momBeginDate = momEndDate.minusDays(daysInclusive - 1);
 
         List<Date> mom = Arrays.asList(