diff --git a/klp-wms/src/main/java/com/klp/controller/WmsPurchasePlanController.java b/klp-wms/src/main/java/com/klp/controller/WmsPurchasePlanController.java
index 63c5c7d7..565e5df2 100644
--- a/klp-wms/src/main/java/com/klp/controller/WmsPurchasePlanController.java
+++ b/klp-wms/src/main/java/com/klp/controller/WmsPurchasePlanController.java
@@ -6,7 +6,6 @@ import java.util.Arrays;
 import lombok.RequiredArgsConstructor;
 import javax.servlet.http.HttpServletResponse;
 import javax.validation.constraints.*;
-import cn.dev33.satoken.annotation.SaCheckPermission;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.validation.annotation.Validated;
 import com.klp.common.annotation.RepeatSubmit;
@@ -37,6 +36,15 @@ public class WmsPurchasePlanController extends BaseController {
 
     private final IWmsPurchasePlanService iWmsPurchasePlanService;
 
+    /**
+     * 根据订单ID生成推荐采购计划（只返回，不落库）
+     */
+    @GetMapping("/recommend/{orderId}")
+    public R<WmsPurchasePlanVo> recommendPurchasePlan(@PathVariable Long orderId) {
+        WmsPurchasePlanVo planVo = iWmsPurchasePlanService.recommendPurchasePlanByOrder(orderId);
+        return R.ok(planVo);
+    }
+
     /**
      * 查询采购计划主列表
      */
diff --git a/klp-wms/src/main/java/com/klp/domain/vo/WmsPurchasePlanVo.java b/klp-wms/src/main/java/com/klp/domain/vo/WmsPurchasePlanVo.java
index 8d8fb798..b3d4db2a 100644
--- a/klp-wms/src/main/java/com/klp/domain/vo/WmsPurchasePlanVo.java
+++ b/klp-wms/src/main/java/com/klp/domain/vo/WmsPurchasePlanVo.java
@@ -6,6 +6,8 @@ import com.klp.common.annotation.ExcelDictFormat;
 import com.klp.common.convert.ExcelDictConvert;
 import lombok.Data;
 
+import java.util.List;
+
 
 /**
  * 采购计划主视图对象 wms_purchase_plan
@@ -56,5 +58,9 @@ public class WmsPurchasePlanVo {
     @ExcelProperty(value = "备注")
     private String remark;
 
+    /**
+     * 采购计划明细列表
+     */
+    private List<WmsPurchasePlanDetailVo> detailList;
 
 }
diff --git a/klp-wms/src/main/java/com/klp/mapper/WmsProductBomMapper.java b/klp-wms/src/main/java/com/klp/mapper/WmsProductBomMapper.java
index 0e1d9d3b..aeedcd3c 100644
--- a/klp-wms/src/main/java/com/klp/mapper/WmsProductBomMapper.java
+++ b/klp-wms/src/main/java/com/klp/mapper/WmsProductBomMapper.java
@@ -4,6 +4,8 @@ import com.klp.domain.WmsProductBom;
 import com.klp.domain.vo.WmsProductBomVo;
 import com.klp.common.core.mapper.BaseMapperPlus;
 
+import java.util.List;
+
 /**
  * 产品BOM（产品-原材料清单）Mapper接口
  *
@@ -12,4 +14,5 @@ import com.klp.common.core.mapper.BaseMapperPlus;
  */
 public interface WmsProductBomMapper extends BaseMapperPlus<WmsProductBomMapper, WmsProductBom, WmsProductBomVo> {
 
+    List<WmsProductBom> listByProductId(Long productId);
 }
diff --git a/klp-wms/src/main/java/com/klp/mapper/WmsStockMapper.java b/klp-wms/src/main/java/com/klp/mapper/WmsStockMapper.java
index 21a82dc8..c1e0fb66 100644
--- a/klp-wms/src/main/java/com/klp/mapper/WmsStockMapper.java
+++ b/klp-wms/src/main/java/com/klp/mapper/WmsStockMapper.java
@@ -4,6 +4,8 @@ import com.klp.domain.WmsStock;
 import com.klp.domain.vo.WmsStockVo;
 import com.klp.common.core.mapper.BaseMapperPlus;
 
+import java.math.BigDecimal;
+
 /**
  * 库存：原材料/产品与库区/库位的存放关系Mapper接口
  *
@@ -12,4 +14,5 @@ import com.klp.common.core.mapper.BaseMapperPlus;
  */
 public interface WmsStockMapper extends BaseMapperPlus<WmsStockMapper, WmsStock, WmsStockVo> {
 
+    BigDecimal getStockByItemId(Long rawMaterialId);
 }
diff --git a/klp-wms/src/main/java/com/klp/service/IWmsProductBomService.java b/klp-wms/src/main/java/com/klp/service/IWmsProductBomService.java
index 297fb924..0b0f06d1 100644
--- a/klp-wms/src/main/java/com/klp/service/IWmsProductBomService.java
+++ b/klp-wms/src/main/java/com/klp/service/IWmsProductBomService.java
@@ -46,4 +46,9 @@ public interface IWmsProductBomService {
      * 校验并批量删除产品BOM（产品-原材料清单）信息
      */
     Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
+
+    /**
+     * 根据产品ID查询产品BOM（产品-原材料清单）列表
+     */
+    List<WmsProductBom> listByProductId(Long productId);
 }
diff --git a/klp-wms/src/main/java/com/klp/service/IWmsPurchasePlanService.java b/klp-wms/src/main/java/com/klp/service/IWmsPurchasePlanService.java
index 5e1a5e6e..886f0f8b 100644
--- a/klp-wms/src/main/java/com/klp/service/IWmsPurchasePlanService.java
+++ b/klp-wms/src/main/java/com/klp/service/IWmsPurchasePlanService.java
@@ -17,6 +17,11 @@ import java.util.List;
  */
 public interface IWmsPurchasePlanService {
 
+    /**
+     * 根据订单ID生成推荐采购计划（只返回，不落库）
+     */
+    WmsPurchasePlanVo recommendPurchasePlanByOrder(Long orderId);
+
     /**
      * 查询采购计划主
      */
diff --git a/klp-wms/src/main/java/com/klp/service/IWmsStockService.java b/klp-wms/src/main/java/com/klp/service/IWmsStockService.java
index 4fb5b33a..2c3d8958 100644
--- a/klp-wms/src/main/java/com/klp/service/IWmsStockService.java
+++ b/klp-wms/src/main/java/com/klp/service/IWmsStockService.java
@@ -6,6 +6,7 @@ import com.klp.domain.bo.WmsStockBo;
 import com.klp.common.core.page.TableDataInfo;
 import com.klp.common.core.domain.PageQuery;
 
+import java.math.BigDecimal;
 import java.util.Collection;
 import java.util.List;
 
@@ -46,4 +47,9 @@ public interface IWmsStockService {
      * 校验并批量删除库存：原材料/产品与库区/库位的存放关系信息
      */
     Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
+
+    /**
+     * 根据原材料ID获取库存数量 (用于生成推荐采购计划)
+     */
+    BigDecimal getStockByItemId(Long rawMaterialId);
 }
diff --git a/klp-wms/src/main/java/com/klp/service/impl/WmsProductBomServiceImpl.java b/klp-wms/src/main/java/com/klp/service/impl/WmsProductBomServiceImpl.java
index df2ebb6e..818c573e 100644
--- a/klp-wms/src/main/java/com/klp/service/impl/WmsProductBomServiceImpl.java
+++ b/klp-wms/src/main/java/com/klp/service/impl/WmsProductBomServiceImpl.java
@@ -109,4 +109,9 @@ public class WmsProductBomServiceImpl implements IWmsProductBomService {
         }
         return baseMapper.deleteBatchIds(ids) > 0;
     }
+
+    @Override
+    public List<WmsProductBom> listByProductId(Long productId) {
+        return baseMapper.listByProductId(productId);
+    }
 }
diff --git a/klp-wms/src/main/java/com/klp/service/impl/WmsPurchasePlanServiceImpl.java b/klp-wms/src/main/java/com/klp/service/impl/WmsPurchasePlanServiceImpl.java
index cfb18069..ac973913 100644
--- a/klp-wms/src/main/java/com/klp/service/impl/WmsPurchasePlanServiceImpl.java
+++ b/klp-wms/src/main/java/com/klp/service/impl/WmsPurchasePlanServiceImpl.java
@@ -7,6 +7,13 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.klp.common.utils.StringUtils;
+import com.klp.domain.WmsOrderDetail;
+import com.klp.domain.WmsProductBom;
+import com.klp.domain.vo.WmsOrderDetailVo;
+import com.klp.domain.vo.WmsPurchasePlanDetailVo;
+import com.klp.service.IWmsOrderDetailService;
+import com.klp.service.IWmsProductBomService;
+import com.klp.service.IWmsStockService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import com.klp.domain.bo.WmsPurchasePlanBo;
@@ -15,9 +22,8 @@ import com.klp.domain.WmsPurchasePlan;
 import com.klp.mapper.WmsPurchasePlanMapper;
 import com.klp.service.IWmsPurchasePlanService;
 
-import java.util.List;
-import java.util.Map;
-import java.util.Collection;
+import java.math.BigDecimal;
+import java.util.*;
 
 /**
  * 采购计划主Service业务层处理
@@ -31,6 +37,49 @@ public class WmsPurchasePlanServiceImpl implements IWmsPurchasePlanService {
 
     private final WmsPurchasePlanMapper baseMapper;
 
+    private final IWmsOrderDetailService wmsOrderDetailService;
+
+    private final IWmsProductBomService wmsProductBomService;
+
+    private final IWmsStockService wmsStockService;
+
+    @Override
+    public WmsPurchasePlanVo recommendPurchasePlanByOrder(Long orderId) {
+        // 1. 查询订单明细
+        List<WmsOrderDetailVo> orderDetails = wmsOrderDetailService.queryListByOrderId(orderId);
+        // 2. 汇总原材料需求
+        Map<Long, WmsPurchasePlanDetailVo> materialMap = new HashMap<>();
+        for (WmsOrderDetailVo detail : orderDetails) {
+            List<WmsProductBom> bomList = wmsProductBomService.listByProductId(detail.getProductId());
+            for (WmsProductBom bom : bomList) {
+                BigDecimal needQty = bom.getQuantity().multiply(detail.getQuantity());
+                WmsPurchasePlanDetailVo vo = materialMap.getOrDefault(bom.getRawMaterialId(), new WmsPurchasePlanDetailVo());
+                vo.setRawMaterialId(bom.getRawMaterialId());
+                vo.setQuantity(vo.getQuantity() == null ? needQty : vo.getQuantity().add(needQty));
+                vo.setUnit(bom.getUnit());
+                materialMap.put(bom.getRawMaterialId(), vo);
+            }
+        }
+        // 3. 查询库存并计算推荐采购量
+        for (WmsPurchasePlanDetailVo vo : materialMap.values()) {
+            BigDecimal stockQty = wmsStockService.getStockByItemId(vo.getRawMaterialId());
+            // 要是物料不是产品
+            BigDecimal recommendQty = BigDecimal.ZERO;
+            if (stockQty != null) {
+                recommendQty = vo.getQuantity().subtract(stockQty);
+            }
+            vo.setQuantity(recommendQty.compareTo(BigDecimal.ZERO) > 0 ? recommendQty : BigDecimal.ZERO);
+        }
+        // 4. 组装主VO
+        WmsPurchasePlanVo planVo = new WmsPurchasePlanVo();
+        planVo.setPlanCode("推荐计划-" + orderId);
+        planVo.setOrderId(orderId);
+        planVo.setOwner("系统推荐");
+        planVo.setRemark("仅供参考，实际采购请确认");
+        planVo.setDetailList(new ArrayList<>(materialMap.values()));
+        return planVo;
+    }
+
     /**
      * 查询采购计划主
      */
diff --git a/klp-wms/src/main/java/com/klp/service/impl/WmsStockServiceImpl.java b/klp-wms/src/main/java/com/klp/service/impl/WmsStockServiceImpl.java
index bfc65042..0a3894c0 100644
--- a/klp-wms/src/main/java/com/klp/service/impl/WmsStockServiceImpl.java
+++ b/klp-wms/src/main/java/com/klp/service/impl/WmsStockServiceImpl.java
@@ -15,6 +15,7 @@ import com.klp.domain.WmsStock;
 import com.klp.mapper.WmsStockMapper;
 import com.klp.service.IWmsStockService;
 
+import java.math.BigDecimal;
 import java.util.List;
 import java.util.Map;
 import java.util.Collection;
@@ -111,4 +112,9 @@ public class WmsStockServiceImpl implements IWmsStockService {
         }
         return baseMapper.deleteBatchIds(ids) > 0;
     }
+
+    @Override
+    public BigDecimal getStockByItemId(Long rawMaterialId) {
+        return baseMapper.getStockByItemId(rawMaterialId);
+    }
 }
diff --git a/klp-wms/src/main/resources/mapper/klp/WmsProductBomMapper.xml b/klp-wms/src/main/resources/mapper/klp/WmsProductBomMapper.xml
index b03879b7..7d8acf59 100644
--- a/klp-wms/src/main/resources/mapper/klp/WmsProductBomMapper.xml
+++ b/klp-wms/src/main/resources/mapper/klp/WmsProductBomMapper.xml
@@ -13,5 +13,12 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="remark" column="remark"/>
     </resultMap>
 
+    <select id="listByProductId" resultType="com.klp.domain.WmsProductBom">
+        SELECT bom_id, product_id, raw_material_id, quantity, unit, remark
+        FROM wms_product_bom
+        WHERE product_id = #{productId}
+        and del_flag = 0
+    </select>
+
 
 </mapper>
diff --git a/klp-wms/src/main/resources/mapper/klp/WmsStockMapper.xml b/klp-wms/src/main/resources/mapper/klp/WmsStockMapper.xml
index 8b527016..a1f0443d 100644
--- a/klp-wms/src/main/resources/mapper/klp/WmsStockMapper.xml
+++ b/klp-wms/src/main/resources/mapper/klp/WmsStockMapper.xml
@@ -20,5 +20,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="updateBy" column="update_by"/>
     </resultMap>
 
+    <select id="getStockByItemId" resultType="java.math.BigDecimal">
+        select sum(quantity) as quantity from wms_stock
+        where item_id = #{rawMaterialId} and item_type = 'raw_material' and del_flag = 0
+    </select>
+
 
 </mapper>