diff --git a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/entity/OemMeritsEntity.java b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/entity/OemMeritsEntity.java
index 24f827ab..ec9ecb43 100644
--- a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/entity/OemMeritsEntity.java
+++ b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/entity/OemMeritsEntity.java
@@ -7,6 +7,7 @@ import lombok.EqualsAndHashCode;
 import org.springblade.core.mp.base.BaseEntity;
 
 import java.io.Serial;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -342,5 +343,10 @@ public class OemMeritsEntity extends BaseEntity {
      */
     @Schema(description = "清零问题-绩效得分")
     private Double qlwtNum;
+    /**
+     * 月份
+     */
+    @Schema(description = "月份")
+    private Date month;
 
 }
diff --git a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/vo/OemMeritsVO.java b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/vo/OemMeritsVO.java
index 98eaa99f..52d6cdda 100644
--- a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/vo/OemMeritsVO.java
+++ b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/oem/pojo/vo/OemMeritsVO.java
@@ -37,7 +37,10 @@ public class OemMeritsVO extends OemMeritsEntity {
     private String monthStr;
 
     public String getMonthStr() {
-        return DateTimeFormatter.ofPattern("yyyy-MM")
-                .format(this.getUpdateTime().toInstant().atZone(ZoneId.systemDefault()));
+        if (null != this.getMonth()) {
+            return DateTimeFormatter.ofPattern("yyyy-MM")
+                    .format(this.getMonth().toInstant().atZone(ZoneId.systemDefault()));
+        }
+        return "";
     }
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/mapper/OemMeritsMapper.xml b/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/mapper/OemMeritsMapper.xml
index 1f5c5ecc..c5682f1e 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/mapper/OemMeritsMapper.xml
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/mapper/OemMeritsMapper.xml
@@ -58,6 +58,7 @@
         <result column="QLWT_TARGET" property="qlwtTarget"/>
         <result column="QLWT_REALITY" property="qlwtReality"/>
         <result column="QLWT_NUM" property="qlwtNum"/>
+        <result column="MONTH" property="month"/>
 
         <result column="ca_code" property="caCode"/>
         <result column="ca_name" property="caName"/>
@@ -91,7 +92,7 @@
             </foreach>
         </if>
         <if test="query.dateStr != null and query.dateStr != ''">
-            AND TO_CHAR(om.update_time, 'YYYY-MM') = #{query.dateStr}
+            AND TO_CHAR(om.month, 'YYYY-MM') = #{query.dateStr}
         </if>
         <if test="query.produceStatusList != null and query.produceStatusList != ''">
             AND om.PRODUCE_STATUS IN
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/service/impl/OemMeritsServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/service/impl/OemMeritsServiceImpl.java
index f901ab93..499a96c0 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/service/impl/OemMeritsServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/oem/service/impl/OemMeritsServiceImpl.java
@@ -58,10 +58,10 @@ public class OemMeritsServiceImpl extends BaseServiceImpl<OemMeritsMapper, OemMe
         }
         List<OemMeritsEntity> saves = new ArrayList<>();
         for (OemMeritsEntity entity : entities) {
-            entity.setUpdateTime(date);
+            entity.setMonth(date);
             entity.setOmStatus(OemMeritsEntity.NEW_DATA);
             LambdaQueryWrapper<OemMeritsEntity> wrapper = new LambdaQueryWrapper<>();
-            wrapper.apply("TO_CHAR(update_time, 'YYYY-MM') = TO_CHAR({0}, 'YYYY-MM')", date)
+            wrapper.apply("TO_CHAR(MONTH, 'YYYY-MM') = TO_CHAR({0}, 'YYYY-MM')", date)
                     .eq(OemMeritsEntity::getCaId, entity.getCaId())
                     .eq(OemMeritsEntity::getOcId, entity.getOcId());
 //					.eq(OemMeritsEntity::getOmStatus, OemMeritsEntity.NEW_DATA);
@@ -148,9 +148,9 @@ public class OemMeritsServiceImpl extends BaseServiceImpl<OemMeritsMapper, OemMe
             // 提取所有不重复的月份（格式为yyyy-MM）
             Set<String> monthSet = proofreadSave.getOemMeritsEntities().stream()
                     .map(entity -> {
-                        // 使用DateTimeFormatter将updateTime格式化为"yyyy-MM"
+                        // 使用DateTimeFormatter将Month格式化为"yyyy-MM"
                         return DateTimeFormatter.ofPattern("yyyy-MM")
-                                .format(entity.getUpdateTime().toInstant().atZone(ZoneId.systemDefault()));
+                                .format(entity.getMonth().toInstant().atZone(ZoneId.systemDefault()));
                     })
                     .filter(Objects::nonNull) // 过滤掉可能的null值
                     .collect(Collectors.toSet());
@@ -192,9 +192,9 @@ public class OemMeritsServiceImpl extends BaseServiceImpl<OemMeritsMapper, OemMe
             // 提取所有不重复的月份（格式为yyyy-MM）
             Set<String> monthSet = oemMeritsEntities.stream()
                     .map(entity -> {
-                        // 使用DateTimeFormatter将updateTime格式化为"yyyy-MM"
+                        // 使用DateTimeFormatter将Month格式化为"yyyy-MM"
                         return DateTimeFormatter.ofPattern("yyyy-MM")
-                                .format(entity.getUpdateTime().toInstant().atZone(ZoneId.systemDefault()));
+                                .format(entity.getMonth().toInstant().atZone(ZoneId.systemDefault()));
                     })
                     .filter(Objects::nonNull) // 过滤掉可能的null值
                     .collect(Collectors.toSet());
@@ -335,7 +335,7 @@ public class OemMeritsServiceImpl extends BaseServiceImpl<OemMeritsMapper, OemMe
     }
 
     /**
-     * 更新排名（以月份updateTime和工艺caId分组，根据最终得分endScore给厂商ocId排名ranking）
+     * 更新排名（以月份Month和工艺caId分组，根据最终得分endScore给厂商ocId排名ranking）
      *
      * @param targetMonth 目标月份，格式为 yyyy-MM
      */
@@ -344,7 +344,7 @@ public class OemMeritsServiceImpl extends BaseServiceImpl<OemMeritsMapper, OemMe
         LambdaQueryWrapper<OemMeritsEntity> queryWrapper = new LambdaQueryWrapper<>();
 
         // 按月份过滤：使用apply进行日期格式化匹配
-        queryWrapper.apply("TO_CHAR(update_time, 'YYYY-MM') = {0}", targetMonth)
+        queryWrapper.apply("TO_CHAR(MONTH, 'YYYY-MM') = {0}", targetMonth)
                 .eq(OemMeritsEntity::getProduceStatus, OemMeritsEntity.PRODUCT_OK)
                 .eq(OemMeritsEntity::getQualityStatus, OemMeritsEntity.QUALITY_OK)
                 .isNotNull(OemMeritsEntity::getEndScore) // 排除最终得分为空的数据