diff --git a/modules/i3plus-ext-mes-pcn-pojo/src/main/java/cn/estsh/i3plus/ext/mes/pcn/pojo/util/ConvertBeanExt.java b/modules/i3plus-ext-mes-pcn-pojo/src/main/java/cn/estsh/i3plus/ext/mes/pcn/pojo/util/ConvertBeanExt.java
index 2922a87..55003ac 100644
--- a/modules/i3plus-ext-mes-pcn-pojo/src/main/java/cn/estsh/i3plus/ext/mes/pcn/pojo/util/ConvertBeanExt.java
+++ b/modules/i3plus-ext-mes-pcn-pojo/src/main/java/cn/estsh/i3plus/ext/mes/pcn/pojo/util/ConvertBeanExt.java
@@ -58,7 +58,7 @@ public class ConvertBeanExt {
         SimpleDateFormat simpleDateFormat = new SimpleDateFormat(MesPcnExtConstWords.DATETIME_FORMAT);
         Date date = new Date();
         String dateTime = simpleDateFormat.format(date);
-        if (dateTime.equals(bean.getModifyDatetime())) dateTime = getModifyDatetimeAdd1s(simpleDateFormat, date);
+        if (dateTime.compareTo(bean.getModifyDatetime()) <= 0) dateTime = getModifyDatetimeAdd1s(simpleDateFormat, date);
         bean.setModifyUser(userName);
         bean.setModifyDatetime(dateTime);
         return bean;