diff --git a/mhd_wms/src/main/java/com/mhd/wms/domain/pickingMaterialDetail/repository/persistence/PickingMaterialDetailImpl.java b/mhd_wms/src/main/java/com/mhd/wms/domain/pickingMaterialDetail/repository/persistence/PickingMaterialDetailImpl.java
index 7e2d6c35f..cfa917231 100644
--- a/mhd_wms/src/main/java/com/mhd/wms/domain/pickingMaterialDetail/repository/persistence/PickingMaterialDetailImpl.java
+++ b/mhd_wms/src/main/java/com/mhd/wms/domain/pickingMaterialDetail/repository/persistence/PickingMaterialDetailImpl.java
@@ -167,19 +167,20 @@ public class PickingMaterialDetailImpl extends ServiceImpl<PickingMaterialDetail
                 throw new ServiceException("物料信息不存在");
             }
             PickingMaterialDetail pickingMaterialDetail = new PickingMaterialDetail();
-            if (!pickingMaterialDetailDO.getCopyCodeReferenceIds().equals(pickingMaterialDetailDb.getCopyCodeReferenceIds())){
+            if (!Objects.equals(pickingMaterialDetailDO.getCopyCodeReferenceIds(), pickingMaterialDetailDb.getCopyCodeReferenceIds())) {
                 pickingMaterialDetail.setCopyCodeReferenceIds(pickingMaterialDetailDO.getCopyCodeReferenceIds());
-                //数据库中的
-                List<Integer> copDO = Arrays.stream(pickingMaterialDetailDb.getCopyCodeReferenceIds().split(","))
-                        .map(Integer::parseInt).collect(Collectors.toList());
-                //用户取消后的
-                List<Integer> cop = Arrays.stream(pickingMaterialDetailDO.getCopyCodeReferenceIds().split(","))
-                        .map(Integer::parseInt).collect(Collectors.toList());
+                // 数据库中的 id 列表
+                List<Integer> copDO = splitCopyCodeReferenceIdsToInts(pickingMaterialDetailDb.getCopyCodeReferenceIds());
+                // 请求中仍保留的 id（用户取消抄码 = 从列表中移除）
+                List<Integer> cop = splitCopyCodeReferenceIdsToInts(pickingMaterialDetailDO.getCopyCodeReferenceIds());
                 List<Integer> collect = copDO.stream().filter(id -> !cop.contains(id)).collect(Collectors.toList());
-                copyCodeReferenceService.lambdaUpdate()
-                        .set(CopyCodeReference::getMaterialStatusCode, 1)
-                        .set(CopyCodeReference::getMaterialStatusName, "可用")
-                        .in(CopyCodeReference::getId, collect);
+                if (!collect.isEmpty()) {
+                    copyCodeReferenceService.lambdaUpdate()
+                            .set(CopyCodeReference::getMaterialStatusCode, 1)
+                            .set(CopyCodeReference::getMaterialStatusName, "可用")
+                            .in(CopyCodeReference::getId, collect)
+                            .update();
+                }
             }
             pickingMaterialDetail.setMaterialDetailId(pickingMaterialDetailDO.getMaterialDetailId());
             pickingMaterialDetail.setUpdateBy(loginUser.getUserid());
@@ -224,6 +225,18 @@ public class PickingMaterialDetailImpl extends ServiceImpl<PickingMaterialDetail
         return pickingOrderPO;
     }
 
+    /** 逗号分隔抄码 id 字符串解析为整数列表；null/空串返回空列表 */
+    private static List<Integer> splitCopyCodeReferenceIdsToInts(String csv) {
+        if (csv == null || csv.trim().isEmpty()) {
+            return Collections.emptyList();
+        }
+        return Arrays.stream(csv.split(","))
+                .map(String::trim)
+                .filter(s -> !s.isEmpty())
+                .map(Integer::parseInt)
+                .collect(Collectors.toList());
+    }
+
     /**
      * @description 生成流水号
      * @author ZhouGY