diff --git a/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/device/RStatDevSignalDPOServiceImpl.java b/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/device/RStatDevSignalDPOServiceImpl.java
index 49517d8f9..c7c1bbb19 100644
--- a/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/device/RStatDevSignalDPOServiceImpl.java
+++ b/pqs-prepare/prepare-boot/src/main/java/com/njcn/prepare/harmonic/service/mysql/Impl/device/RStatDevSignalDPOServiceImpl.java
@@ -77,7 +77,7 @@ public class RStatDevSignalDPOServiceImpl extends MppServiceImpl<RStatDevSignalD
             RStatDevSignalDPO rStatDevSignal = new RStatDevSignalDPO();
             rStatDevSignal.setDeviceId(k);
             rStatDevSignal.setDeviceStatus(data.getId());
-            if (!Objects.isNull(v.get(0).getUpdateTime())){
+            if (!Objects.isNull(v.get(0))){
                 rStatDevSignal.setUpdateTime(v.get(0).getUpdateTime().format(DatePattern.NORM_DATETIME_FORMATTER));
             }
             rStatDevSignal.setDataDate(LocalDateTimeUtil.parseDate(calculatedParam.getDataDate(),DatePattern.NORM_DATE_FORMATTER));