diff --git a/src/main/java/com/spring/modules/part/entity/PartInformationEntity.java b/src/main/java/com/spring/modules/part/entity/PartInformationEntity.java
index f058be7b..f9ebc03e 100644
--- a/src/main/java/com/spring/modules/part/entity/PartInformationEntity.java
+++ b/src/main/java/com/spring/modules/part/entity/PartInformationEntity.java
@@ -1,6 +1,7 @@
 package com.spring.modules.part.entity;
 
 import com.baomidou.mybatisplus.annotation.FieldFill;
+import com.baomidou.mybatisplus.annotation.FieldStrategy;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonFormat;
@@ -405,5 +406,6 @@ public class PartInformationEntity extends QueryPage implements Serializable {
      */
     private String temporaryPartFlag;
 
+    @TableField(updateStrategy = FieldStrategy.NOT_EMPTY)
     private String copyPartNo;
 }