diff --git a/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesEarlyWarningServiceImpl.java b/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesEarlyWarningServiceImpl.java
index 7717cb1..556b1ef 100644
--- a/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesEarlyWarningServiceImpl.java
+++ b/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesEarlyWarningServiceImpl.java
@@ -147,7 +147,7 @@ public class MesEarlyWarningServiceImpl implements IMesEarlyWarningService {
         Date shiftStartTime = sdf1.parse(tempStartDatetime);
         //如果小于当前时间，显示前一天的统计
         Calendar calendar = Calendar.getInstance();
-        if (shiftStartTime.before(now)) {
+        if (now.before(shiftStartTime)) {
             calendar.setTime(now);
             calendar.add(Calendar.DATE, -1);
         } else {