diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/MesWmItemReceiptController.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/MesWmItemReceiptController.java
index ac6ab6a..4f40ade 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/MesWmItemReceiptController.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/MesWmItemReceiptController.java
@@ -15,16 +15,10 @@ import cn.iocoder.yudao.module.mes.dal.dataobject.md.vendor.MesMdVendorDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.qc.iqc.MesQcIqcDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.arrivalnotice.MesWmArrivalNoticeDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.itemreceipt.MesWmItemReceiptDO;
-import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseAreaDO;
-import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseDO;
-import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseLocationDO;
 import cn.iocoder.yudao.module.mes.service.md.vendor.MesMdVendorService;
 import cn.iocoder.yudao.module.mes.service.qc.iqc.MesQcIqcService;
 import cn.iocoder.yudao.module.mes.service.wm.arrivalnotice.MesWmArrivalNoticeService;
 import cn.iocoder.yudao.module.mes.service.wm.itemreceipt.MesWmItemReceiptService;
-import cn.iocoder.yudao.module.mes.service.wm.warehouse.MesWmWarehouseAreaService;
-import cn.iocoder.yudao.module.mes.service.wm.warehouse.MesWmWarehouseLocationService;
-import cn.iocoder.yudao.module.mes.service.wm.warehouse.MesWmWarehouseService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/vo/line/MesWmItemReceiptLinePageReqVO.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/vo/line/MesWmItemReceiptLinePageReqVO.java
index 2841e3d..d8e8ef4 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/vo/line/MesWmItemReceiptLinePageReqVO.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/itemreceipt/vo/line/MesWmItemReceiptLinePageReqVO.java
@@ -2,19 +2,25 @@ package cn.iocoder.yudao.module.mes.controller.admin.wm.itemreceipt.vo.line;
 
 import cn.iocoder.yudao.framework.common.pojo.PageParam;
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.constraints.NotNull;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.ToString;
 
+import java.util.List;
+
 @Schema(description = "管理后台 - MES 采购入库单行分页 Request VO")
 @Data
 @EqualsAndHashCode(callSuper = true)
 @ToString(callSuper = true)
 public class MesWmItemReceiptLinePageReqVO extends PageParam {
 
-    @Schema(description = "入库单编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
-    @NotNull(message = "入库单编号不能为空")
+    @Schema(description = "入库单编号", example = "1")
     private Long receiptId;
 
+    @Schema(description = "供应商编号", example = "1")
+    private Long vendorId;
+
+    @Schema(description = "入库单编号列表（内部使用，供应商过滤时自动填充）", hidden = true)
+    private List<Long> receiptIds;
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptLineMapper.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptLineMapper.java
index 6fcf3d8..6499b9a 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptLineMapper.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptLineMapper.java
@@ -18,6 +18,7 @@ public interface MesWmItemReceiptLineMapper extends BaseMapperX<MesWmItemReceipt
     default PageResult<MesWmItemReceiptLineDO> selectPage(MesWmItemReceiptLinePageReqVO reqVO) {
         return selectPage(reqVO, new LambdaQueryWrapperX<MesWmItemReceiptLineDO>()
                 .eqIfPresent(MesWmItemReceiptLineDO::getReceiptId, reqVO.getReceiptId())
+                .inIfPresent(MesWmItemReceiptLineDO::getReceiptId, reqVO.getReceiptIds())
                 .orderByDesc(MesWmItemReceiptLineDO::getId));
     }
 
@@ -29,4 +30,8 @@ public interface MesWmItemReceiptLineMapper extends BaseMapperX<MesWmItemReceipt
         delete(MesWmItemReceiptLineDO::getReceiptId, receiptId);
     }
 
+    default List<MesWmItemReceiptLineDO> selectListByReceiptIds(java.util.Collection<Long> receiptIds) {
+        return selectList(MesWmItemReceiptLineDO::getReceiptId, receiptIds);
+    }
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptMapper.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptMapper.java
index a21d37b..486cee3 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptMapper.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/dal/mysql/wm/itemreceipt/MesWmItemReceiptMapper.java
@@ -7,6 +7,8 @@ import cn.iocoder.yudao.module.mes.controller.admin.wm.itemreceipt.vo.MesWmItemR
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.itemreceipt.MesWmItemReceiptDO;
 import org.apache.ibatis.annotations.Mapper;
 
+import java.util.List;
+
 /**
  * MES 采购入库单 Mapper
  */
@@ -30,4 +32,8 @@ public interface MesWmItemReceiptMapper extends BaseMapperX<MesWmItemReceiptDO> 
         return selectCount(MesWmItemReceiptDO::getVendorId, vendorId);
     }
 
+    default List<MesWmItemReceiptDO> selectListByVendorId(Long vendorId) {
+        return selectList(MesWmItemReceiptDO::getVendorId, vendorId);
+    }
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptLineServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptLineServiceImpl.java
index a29ee86..afc4436 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptLineServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptLineServiceImpl.java
@@ -1,5 +1,6 @@
 package cn.iocoder.yudao.module.mes.service.wm.itemreceipt;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.batch.vo.MesWmBatchGenerateReqVO;
@@ -22,6 +23,7 @@ import org.springframework.validation.annotation.Validated;
 import java.util.List;
 
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertList;
 import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.*;
 
 /**
@@ -107,6 +109,15 @@ public class MesWmItemReceiptLineServiceImpl implements MesWmItemReceiptLineServ
 
     @Override
     public PageResult<MesWmItemReceiptLineDO> getItemReceiptLinePage(MesWmItemReceiptLinePageReqVO pageReqVO) {
+        // 如果传了 vendorId，先查出该供应商的所有入库单 ID，设置到 receiptIds
+        if (pageReqVO.getReceiptId() == null) {
+            List<MesWmItemReceiptDO> receipts = itemReceiptService.getItemReceiptListByVendorId(pageReqVO.getVendorId());
+            if (CollUtil.isEmpty(receipts)) {
+                return PageResult.empty();
+            }
+            pageReqVO.setReceiptIds(convertList(receipts, MesWmItemReceiptDO::getId));
+        }
+        // 查询分页
         return itemReceiptLineMapper.selectPage(pageReqVO);
     }
 
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptService.java
index 6c7a816..17bc00e 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptService.java
@@ -6,6 +6,8 @@ import cn.iocoder.yudao.module.mes.controller.admin.wm.itemreceipt.vo.MesWmItemR
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.itemreceipt.MesWmItemReceiptDO;
 import jakarta.validation.Valid;
 
+import java.util.List;
+
 /**
  * MES 采购入库单 Service 接口
  */
@@ -93,4 +95,12 @@ public interface MesWmItemReceiptService {
      */
     Long getItemReceiptCountByVendorId(Long vendorId);
 
+    /**
+     * 查询指定供应商的采购入库单列表
+     *
+     * @param vendorId 供应商编号
+     * @return 入库单列表
+     */
+    List<MesWmItemReceiptDO> getItemReceiptListByVendorId(Long vendorId);
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptServiceImpl.java
index 69f46eb..5edf17b 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/itemreceipt/MesWmItemReceiptServiceImpl.java
@@ -233,4 +233,9 @@ public class MesWmItemReceiptServiceImpl implements MesWmItemReceiptService {
         return itemReceiptMapper.selectCountByVendorId(vendorId);
     }
 
+    @Override
+    public List<MesWmItemReceiptDO> getItemReceiptListByVendorId(Long vendorId) {
+        return itemReceiptMapper.selectListByVendorId(vendorId);
+    }
+
 }