diff --git a/ktg-mes/src/main/java/com/ktg/mes/dv/service/impl/DvCheckMachineryServiceImpl.java b/ktg-mes/src/main/java/com/ktg/mes/dv/service/impl/DvCheckMachineryServiceImpl.java
index d65041c..27da6fa 100644
--- a/ktg-mes/src/main/java/com/ktg/mes/dv/service/impl/DvCheckMachineryServiceImpl.java
+++ b/ktg-mes/src/main/java/com/ktg/mes/dv/service/impl/DvCheckMachineryServiceImpl.java
@@ -51,7 +51,7 @@ public class DvCheckMachineryServiceImpl implements IDvCheckMachineryService
     public String checkMachineryUnique(DvCheckMachinery dvCheckMachinery) {
         DvCheckMachinery machinery = dvCheckMachineryMapper.checkMachineryUnique(dvCheckMachinery);
         Long recordId = dvCheckMachinery.getRecordId()==null?-1L:dvCheckMachinery.getRecordId();
-        if(StringUtils.isNotNull(machinery) && machinery.getRecordId().longValue() == recordId.longValue()){
+        if(StringUtils.isNotNull(machinery) && machinery.getRecordId().longValue() != recordId.longValue()){
             return UserConstants.NOT_UNIQUE;
         }
         return UserConstants.UNIQUE;
diff --git a/ktg-mes/src/main/resources/mapper/dv/DvCheckMachineryMapper.xml b/ktg-mes/src/main/resources/mapper/dv/DvCheckMachineryMapper.xml
index 11a198d..5e1ffe1 100644
--- a/ktg-mes/src/main/resources/mapper/dv/DvCheckMachineryMapper.xml
+++ b/ktg-mes/src/main/resources/mapper/dv/DvCheckMachineryMapper.xml
@@ -46,7 +46,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 
     <select id="checkMachineryUnique" parameterType="DvCheckMachinery" resultMap="DvCheckMachineryResult">
         <include refid="selectDvCheckMachineryVo"/>
-        where machinery_id = #{machineryId}
+        where machinery_id = #{machineryId} limit 1
     </select>
         
     <insert id="insertDvCheckMachinery" parameterType="DvCheckMachinery" useGeneratedKeys="true" keyProperty="recordId">