diff --git a/src/main/java/com/gaotao/modules/check/mapper/RfidCountSnapshotMapper.java b/src/main/java/com/gaotao/modules/check/mapper/RfidCountSnapshotMapper.java
index 096d48e..33a8fc2 100644
--- a/src/main/java/com/gaotao/modules/check/mapper/RfidCountSnapshotMapper.java
+++ b/src/main/java/com/gaotao/modules/check/mapper/RfidCountSnapshotMapper.java
@@ -5,6 +5,8 @@ import com.gaotao.modules.check.entity.RfidCountSnapshot;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
+import java.util.Date;
+
 /**
  * @Description 标签盘点快照表Mapper - rqrq
  * @author rqrq
@@ -66,6 +68,19 @@ public interface RfidCountSnapshotMapper extends BaseMapper<RfidCountSnapshot> {
      * @date 2026/03/16
      */
     int deleteSnapshotBySite(@Param("site") String site);
+
+    /**
+     * @Description 将 last_count_date 早于 lastPandian 的快照备份到 rfid_count_snapshot_history，count_no 为归档批次（yyyyMMddHHmmss）- rqrq
+     */
+    int backupStaleSnapshotToHistoryByLastPandian(@Param("site") String site,
+                                                  @Param("lastPandian") Date lastPandian,
+                                                  @Param("countNo") String countNo);
+
+    /**
+     * @Description 删除 last_count_date 早于 lastPandian 的 rfid_count_snapshot 行（须先备份）- rqrq
+     */
+    int deleteStaleRfidCountSnapshotByLastPandian(@Param("site") String site,
+                                                  @Param("lastPandian") Date lastPandian);
     
     /**
      * @Description 从快照插入count_result（盘点结果，全部为OK无差异）- rqrq
diff --git a/src/main/java/com/gaotao/modules/check/service/impl/PhysicalInventoryServiceImpl.java b/src/main/java/com/gaotao/modules/check/service/impl/PhysicalInventoryServiceImpl.java
index b7259ea..fee1091 100644
--- a/src/main/java/com/gaotao/modules/check/service/impl/PhysicalInventoryServiceImpl.java
+++ b/src/main/java/com/gaotao/modules/check/service/impl/PhysicalInventoryServiceImpl.java
@@ -10,6 +10,7 @@ import com.gaotao.modules.automatedWarehouse.entity.WmsOrderTaskDetailData;
 import com.gaotao.modules.automatedWarehouse.mapper.WcsIntegrationMapper;
 import com.gaotao.modules.check.entity.*;
 import com.gaotao.modules.check.mapper.PhysicalInventoryMapper;
+import com.gaotao.modules.check.mapper.RfidCountSnapshotMapper;
 import com.gaotao.modules.check.service.PhysicalInventoryService;
 import com.gaotao.common.utils.R;
 import com.gaotao.modules.trans.entity.TransNoControl;
@@ -26,6 +27,7 @@ import org.springframework.util.StringUtils;
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 import java.time.*;
+import java.time.format.DateTimeFormatter;
 import java.util.*;
 import java.util.stream.Collectors;
 import java.util.Set;
@@ -50,6 +52,9 @@ public class PhysicalInventoryServiceImpl extends ServiceImpl<PhysicalInventoryM
     @Autowired
     private WcsApiService wcsApiService;  // rqrq - 注入WCS接口服务
 
+    @Autowired
+    private RfidCountSnapshotMapper rfidCountSnapshotMapper;
+
     /** 多行 VALUES 批量插入每批最大行数（count_label/count_pallet/count_result），避免 SQL Server 2100 参数上限 - rqrq */
     private static final int BATCH_INSERT_MAX_ROWS = 100;
 
@@ -2502,9 +2507,18 @@ public class PhysicalInventoryServiceImpl extends ServiceImpl<PhysicalInventoryM
                 lastPandian = Date.from(lastDayOfLastYear.atStartOfDay(ZoneId.systemDefault()).toInstant());
 
             }
+            // 过期 RFID 快照归档：last_count_date < lastPandian 的写入历史，history.count_no=当前时间串 yyyyMMddHHmmss - rqrq
+            String snapshotArchiveCountNo = DateTimeFormatter.ofPattern("yyyyMMddHHmmss")
+                    .format(LocalDateTime.now(ZoneId.of("Asia/Shanghai")));
+            int archivedRows = rfidCountSnapshotMapper.backupStaleSnapshotToHistoryByLastPandian(site, lastPandian, snapshotArchiveCountNo);
+            int deletedSnapRows = rfidCountSnapshotMapper.deleteStaleRfidCountSnapshotByLastPandian(site, lastPandian);
+            log.info("开启盘点模式 RFID 快照归档 site={} lastPandian={} archiveCountNo={} 历史插入={} 快照删除={} - rqrq",
+                    site, lastPandian, snapshotArchiveCountNo, archivedRows, deletedSnapRows);
+
             baseMapper.updateLastPandianHU(site, lastPandian);
           //开启盘点模式
 
+
         }else {
             if("N".equals(nowStatus)){
                 throw new RuntimeException("盘点模式已关闭,无需重复关闭");
diff --git a/src/main/resources/mapper/check/RfidCountSnapshotMapper.xml b/src/main/resources/mapper/check/RfidCountSnapshotMapper.xml
index d8153f4..6fef56a 100644
--- a/src/main/resources/mapper/check/RfidCountSnapshotMapper.xml
+++ b/src/main/resources/mapper/check/RfidCountSnapshotMapper.xml
@@ -101,6 +101,34 @@
     <delete id="deleteSnapshotBySite">
         DELETE FROM rfid_count_snapshot WHERE site = #{site}
     </delete>
+
+    <!-- rqrq - 开启盘点模式：将 last_count_date 早于 lastPandian 的快照写入历史（count_no=归档批次号 yyyyMMddHHmmss）-->
+    <insert id="backupStaleSnapshotToHistoryByLastPandian">
+        INSERT INTO rfid_count_snapshot_history (
+            site, unit_id, part_no, qty, batch_no,
+            location_id, warehouse_id, wdr,
+            last_count_date, pallet_id, count_result, count_times,
+            remark, created_date, updated_date,
+            count_no, backup_date
+        )
+        SELECT
+            site, unit_id, part_no, qty, batch_no,
+            location_id, warehouse_id, wdr,
+            last_count_date, pallet_id, count_result, count_times,
+            remark, created_date, updated_date,
+            #{countNo},
+            GETDATE()
+        FROM rfid_count_snapshot
+        WHERE site = #{site}
+          AND last_count_date &lt; #{lastPandian}
+    </insert>
+
+    <!-- rqrq - 开启盘点模式：删除已归档到历史的过期快照行 -->
+    <delete id="deleteStaleRfidCountSnapshotByLastPandian">
+        DELETE FROM rfid_count_snapshot
+        WHERE site = #{site}
+          AND last_count_date &lt; #{lastPandian}
+    </delete>
     
     <!-- rqrq - 从快照插入count_result（盘点结果，全部为OK无差异）-->
     <insert id="insertCountResultFromSnapshot">