diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/MesQcRqcLineController.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/MesQcRqcLineController.java
index ca965d1..2139ba5 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/MesQcRqcLineController.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/MesQcRqcLineController.java
@@ -9,11 +9,9 @@ import cn.iocoder.yudao.module.mes.controller.admin.qc.rqc.vo.line.MesQcRqcLineR
 import cn.iocoder.yudao.module.mes.dal.dataobject.md.unitmeasure.MesMdUnitMeasureDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.qc.rqc.MesQcRqcLineDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.qc.indicator.MesQcIndicatorDO;
-import cn.iocoder.yudao.module.mes.dal.dataobject.tm.tool.MesTmToolDO;
 import cn.iocoder.yudao.module.mes.service.md.unitmeasure.MesMdUnitMeasureService;
 import cn.iocoder.yudao.module.mes.service.qc.rqc.MesQcRqcLineService;
 import cn.iocoder.yudao.module.mes.service.qc.indicator.MesQcIndicatorService;
-import cn.iocoder.yudao.module.mes.service.tm.tool.MesTmToolService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -46,8 +44,6 @@ public class MesQcRqcLineController {
     private MesQcIndicatorService indicatorService;
     @Resource
     private MesMdUnitMeasureService unitMeasureService;
-    @Resource
-    private MesTmToolService toolService;
 
     @GetMapping("/get")
     @Operation(summary = "获得退货检验单行")
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/vo/MesQcRqcPageReqVO.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/vo/MesQcRqcPageReqVO.java
index c8368e2..5966a24 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/vo/MesQcRqcPageReqVO.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/qc/rqc/vo/MesQcRqcPageReqVO.java
@@ -20,8 +20,8 @@ public class MesQcRqcPageReqVO extends PageParam {
     @Schema(description = "检验单编号", example = "RQC2025")
     private String code;
 
-    @Schema(description = "来源单据类型", example = "RTISSUE")
-    private String sourceDocType;
+    @Schema(description = "来源单据类型", example = "1")
+    private Integer sourceDocType;
 
     @Schema(description = "产品物料 ID", example = "20")
     private Long itemId;
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/enums/md/autocode/MesMdAutoCodeRuleCodeEnum.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/enums/md/autocode/MesMdAutoCodeRuleCodeEnum.java
index 49aa520..7dd1047 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/enums/md/autocode/MesMdAutoCodeRuleCodeEnum.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/enums/md/autocode/MesMdAutoCodeRuleCodeEnum.java
@@ -17,7 +17,8 @@ public enum MesMdAutoCodeRuleCodeEnum {
     BATCH_CODE("WM_BATCH_CODE", "批次编码"),
     TASK_CODE("PRO_TASK_CODE", "生产任务编码"),
     QC_IQC_CODE("QC_IQC_CODE", "来料检验单编码"),
-    QC_IPQC_CODE("QC_IPQC_CODE", "过程检验单编码");
+    QC_IPQC_CODE("QC_IPQC_CODE", "过程检验单编码"),
+    QC_RQC_CODE("QC_RQC_CODE", "退货检验单编码");
 
     /**
      * 规则代码
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImpl.java
index cfed9b2..cd6e513 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImpl.java
@@ -134,8 +134,8 @@ public class MesQcRqcServiceImpl implements MesQcRqcService {
      *
      * <p>根据 sourceDocType 分发：
      * <ul>
-     *     <li>WM_RETURN_ISSUE（生产退料单）→ 回写行的 qualityStatus</li>
-     *     <li>WM_RETURN_SALES（销售退货单）→ 回写行的 qualityStatus</li>
+     *     <li>WM_RETURN_ISSUE（生产退料单）→ 根据合格/不合格数量拆分行 + 更新 qualityStatus + 联动主单状态</li>
+     *     <li>WM_RETURN_SALES（销售退货单）→ 同上</li>
      * </ul>
      *
      * @param rqc 退货检验单
@@ -150,11 +150,15 @@ public class MesQcRqcServiceImpl implements MesQcRqcService {
         }
 
         if (Objects.equals(rqc.getSourceDocType(), MesBizTypeConstants.WM_RETURN_ISSUE)) {
-            // 回写生产退料单行的 qualityStatus
-            returnIssueLineService.updateReturnIssueLineWhenRqcFinish(rqc.getSourceLineId(), rqc.getCheckResult());
+            // 回写生产退料单行：拆分行 + 更新质量状态 + 联动主单状态
+            returnIssueLineService.updateReturnIssueLineWhenRqcFinish(
+                    rqc.getSourceLineId(), rqc.getSourceDocId(), rqc.getCheckResult(),
+                    rqc.getQualifiedQuantity(), rqc.getUnqualifiedQuantity());
         } else if (Objects.equals(rqc.getSourceDocType(), MesBizTypeConstants.WM_RETURN_SALES)) {
-            // 回写销售退货单行的 qualityStatus
-            returnSalesLineService.updateReturnSalesLineWhenRqcFinish(rqc.getSourceLineId(), rqc.getCheckResult());
+            // 回写销售退货单行：拆分行 + 更新质量状态 + 联动主单状态
+            returnSalesLineService.updateReturnSalesLineWhenRqcFinish(
+                    rqc.getSourceLineId(), rqc.getSourceDocId(), rqc.getCheckResult(),
+                    rqc.getQualifiedQuantity(), rqc.getUnqualifiedQuantity());
         } else {
             throw new IllegalArgumentException(
                     "RQC 单[" + rqc.getId() + "] sourceDocType=" + rqc.getSourceDocType() + " 无法识别，无法回写来源单据");
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineService.java
index fb70546..6a8786f 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineService.java
@@ -6,6 +6,7 @@ import cn.iocoder.yudao.module.mes.controller.admin.wm.returnissue.vo.line.MesWm
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnissue.MesWmReturnIssueLineDO;
 import jakarta.validation.Valid;
 
+import java.math.BigDecimal;
 import java.util.List;
 
 /**
@@ -83,11 +84,23 @@ public interface MesWmReturnIssueLineService {
     void updateReturnIssueQualityStatusByIssueId(Long issueId, Integer issueType);
 
     /**
-     * RQC 检验完成后，更新生产退料单行的质量状态
+     * RQC 检验完成后，根据合格品/不合格品数量更新生产退料单行
      *
-     * @param id 行 ID
-     * @param checkResult 检验结果
+     * <p>拆分逻辑：
+     * <ul>
+     *     <li>全部合格：直接更新行的 qualityStatus 为合格</li>
+     *     <li>全部不合格：直接更新行的 qualityStatus 为不合格</li>
+     *     <li>部分合格部分不合格：拆分原行（原行改为合格+数量=合格数，新增一行不合格+数量=不合格数）</li>
+     * </ul>
+     * 同时检查退料单下所有行是否都已检验完毕，若全检完则将退料单状态设为待上架。
+     *
+     * @param sourceLineId        来源行 ID
+     * @param sourceDocId         来源退料单 ID
+     * @param checkResult         检验结果
+     * @param qualifiedQuantity   合格品数量
+     * @param unqualifiedQuantity 不合格品数量
      */
-    void updateReturnIssueLineWhenRqcFinish(Long id, Integer checkResult);
+    void updateReturnIssueLineWhenRqcFinish(Long sourceLineId, Long sourceDocId, Integer checkResult,
+                                            BigDecimal qualifiedQuantity, BigDecimal unqualifiedQuantity);
 
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImpl.java
index 335c93b..f4dff35 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImpl.java
@@ -1,5 +1,6 @@
 package cn.iocoder.yudao.module.mes.service.wm.returnissue;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.util.ObjUtil;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
@@ -8,8 +9,8 @@ import cn.iocoder.yudao.module.mes.controller.admin.wm.returnissue.vo.line.MesWm
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnissue.MesWmReturnIssueDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnissue.MesWmReturnIssueLineDO;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.returnissue.MesWmReturnIssueLineMapper;
-import cn.iocoder.yudao.module.mes.enums.qc.MesQcCheckResultEnum;
 import cn.iocoder.yudao.module.mes.enums.wm.MesWmQualityStatusEnum;
+import cn.iocoder.yudao.module.mes.enums.wm.MesWmReturnIssueStatusEnum;
 import cn.iocoder.yudao.module.mes.enums.wm.MesWmReturnIssueTypeEnum;
 import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemService;
 import jakarta.annotation.Resource;
@@ -17,6 +18,7 @@ import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
 
+import java.math.BigDecimal;
 import java.util.List;
 import java.util.Objects;
 
@@ -137,10 +139,51 @@ public class MesWmReturnIssueLineServiceImpl implements MesWmReturnIssueLineServ
     }
 
     @Override
-    public void updateReturnIssueLineWhenRqcFinish(Long id, Integer checkResult) {
-        Integer qualityStatus = Objects.equals(checkResult, MesQcCheckResultEnum.PASS.getType())
-                ? MesWmQualityStatusEnum.PASS.getStatus() : MesWmQualityStatusEnum.FAIL.getStatus();
-        issueLineMapper.updateById(new MesWmReturnIssueLineDO().setId(id).setQualityStatus(qualityStatus));
+    public void updateReturnIssueLineWhenRqcFinish(Long sourceLineId, Long sourceDocId, Integer checkResult,
+                                                    BigDecimal qualifiedQuantity, BigDecimal unqualifiedQuantity) {
+        MesWmReturnIssueLineDO sourceLine = validateReturnIssueLineExists(sourceLineId);
+        boolean hasUnqualified = unqualifiedQuantity != null && unqualifiedQuantity.compareTo(BigDecimal.ZERO) > 0;
+        boolean hasQualified = qualifiedQuantity != null && qualifiedQuantity.compareTo(BigDecimal.ZERO) > 0;
+
+        // 1. 根据合格/不合格品数量，更新退料单行的质量状态
+        if (!hasUnqualified) {
+            // 1.A 情况一：全部合格
+            issueLineMapper.updateById(new MesWmReturnIssueLineDO()
+                    .setId(sourceLineId).setQualityStatus(MesWmQualityStatusEnum.PASS.getStatus()));
+        } else if (!hasQualified) {
+            // 1.B 情况二：全部不合格
+            issueLineMapper.updateById(new MesWmReturnIssueLineDO()
+                    .setId(sourceLineId).setQualityStatus(MesWmQualityStatusEnum.FAIL.getStatus()));
+        } else {
+            // 1.C 情况三：部分合格部分不合格 → 拆分行
+            // 1.C.1 新增一行不合格品
+            MesWmReturnIssueLineDO unqualifiedLine = new MesWmReturnIssueLineDO()
+                    .setIssueId(sourceLine.getIssueId())
+                    .setMaterialStockId(sourceLine.getMaterialStockId())
+                    .setItemId(sourceLine.getItemId())
+                    .setQuantity(unqualifiedQuantity)
+                    .setBatchId(sourceLine.getBatchId())
+                    .setIpqcId(sourceLine.getIpqcId())
+                    .setQcFlag(sourceLine.getQcFlag())
+                    .setQualityStatus(MesWmQualityStatusEnum.FAIL.getStatus())
+                    .setRemark(sourceLine.getRemark());
+            issueLineMapper.insert(unqualifiedLine);
+            // 1.C.2 更新原行为合格品（数量调整为合格数量）
+            issueLineMapper.updateById(new MesWmReturnIssueLineDO()
+                    .setId(sourceLineId)
+                    .setQuantity(qualifiedQuantity)
+                    .setQualityStatus(MesWmQualityStatusEnum.PASS.getStatus()));
+        }
+
+        // 2. 检查退料单下是否还有待检验的行，若全检完则将退料单状态设为"待上架"
+        if (sourceDocId != null) {
+            List<MesWmReturnIssueLineDO> allLines = issueLineMapper.selectListByIssueId(sourceDocId);
+            boolean allInspected = !CollUtil.contains(allLines,
+                    line -> Objects.equals(line.getQualityStatus(), MesWmQualityStatusEnum.PENDING.getStatus()));
+            if (allInspected) {
+                issueService.updateReturnIssueStatus(sourceDocId, MesWmReturnIssueStatusEnum.APPROVING.getStatus());
+            }
+        }
     }
 
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueService.java
index 68118a2..5f16cb5 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueService.java
@@ -85,4 +85,12 @@ public interface MesWmReturnIssueService {
      */
     void cancelReturnIssue(Long id);
 
+    /**
+     * 更新生产退料单状态（供外部模块联动调用，如 RQC 检验完成后）
+     *
+     * @param id 编号
+     * @param status 目标状态
+     */
+    void updateReturnIssueStatus(Long id, Integer status);
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueServiceImpl.java
index 92e634c..cf47a6f 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueServiceImpl.java
@@ -271,4 +271,10 @@ public class MesWmReturnIssueServiceImpl implements MesWmReturnIssueService {
         return issue;
     }
 
+    @Override
+    public void updateReturnIssueStatus(Long id, Integer status) {
+        validateReturnIssueExists(id);
+        issueMapper.updateById(new MesWmReturnIssueDO().setId(id).setStatus(status));
+    }
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineService.java
index 376e454..496d4a1 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineService.java
@@ -6,6 +6,7 @@ import cn.iocoder.yudao.module.mes.controller.admin.wm.returnsales.vo.line.MesWm
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnsales.MesWmReturnSalesLineDO;
 import jakarta.validation.Valid;
 
+import java.math.BigDecimal;
 import java.util.List;
 
 /**
@@ -85,11 +86,23 @@ public interface MesWmReturnSalesLineService {
     void updateQualityStatusByReturnId(Long returnId, Integer qualityStatus);
 
     /**
-     * RQC 检验完成后，更新销售退货单行的质量状态
+     * RQC 检验完成后，根据合格品/不合格品数量更新销售退货单行
      *
-     * @param id 行 ID
-     * @param checkResult 检验结果
+     * <p>拆分逻辑：
+     * <ul>
+     *     <li>全部合格：直接更新行的 qualityStatus 为合格</li>
+     *     <li>全部不合格：直接更新行的 qualityStatus 为不合格</li>
+     *     <li>部分合格部分不合格：拆分原行（原行改为合格+数量=合格数，新增一行不合格+数量=不合格数）</li>
+     * </ul>
+     * 同时检查退货单下所有行是否都已检验完毕，若全检完则将退货单状态设为待上架。
+     *
+     * @param sourceLineId        来源行 ID
+     * @param sourceDocId         来源退货单 ID
+     * @param checkResult         检验结果
+     * @param qualifiedQuantity   合格品数量
+     * @param unqualifiedQuantity 不合格品数量
      */
-    void updateReturnSalesLineWhenRqcFinish(Long id, Integer checkResult);
+    void updateReturnSalesLineWhenRqcFinish(Long sourceLineId, Long sourceDocId, Integer checkResult,
+                                            BigDecimal qualifiedQuantity, BigDecimal unqualifiedQuantity);
 
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImpl.java
index a6478b5..a3fb263 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImpl.java
@@ -1,5 +1,6 @@
 package cn.iocoder.yudao.module.mes.service.wm.returnsales;
 
+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.returnsales.vo.line.MesWmReturnSalesLinePageReqVO;
@@ -7,14 +8,15 @@ import cn.iocoder.yudao.module.mes.controller.admin.wm.returnsales.vo.line.MesWm
 import cn.iocoder.yudao.module.mes.dal.dataobject.md.item.MesMdItemDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnsales.MesWmReturnSalesLineDO;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.returnsales.MesWmReturnSalesLineMapper;
-import cn.iocoder.yudao.module.mes.enums.qc.MesQcCheckResultEnum;
 import cn.iocoder.yudao.module.mes.enums.wm.MesWmQualityStatusEnum;
+import cn.iocoder.yudao.module.mes.enums.wm.MesWmReturnSalesStatusEnum;
 import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemService;
 import jakarta.annotation.Resource;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
 
+import java.math.BigDecimal;
 import java.util.List;
 import java.util.Objects;
 
@@ -129,11 +131,48 @@ public class MesWmReturnSalesLineServiceImpl implements MesWmReturnSalesLineServ
     }
 
     @Override
-    public void updateReturnSalesLineWhenRqcFinish(Long id, Integer checkResult) {
-        Integer qualityStatus = Objects.equals(checkResult, MesQcCheckResultEnum.PASS.getType())
-                ? MesWmQualityStatusEnum.PASS.getStatus()
-                : MesWmQualityStatusEnum.FAIL.getStatus();
-        returnSalesLineMapper.updateById(new MesWmReturnSalesLineDO().setId(id).setQualityStatus(qualityStatus));
+    public void updateReturnSalesLineWhenRqcFinish(Long sourceLineId, Long sourceDocId, Integer checkResult,
+                                                    BigDecimal qualifiedQuantity, BigDecimal unqualifiedQuantity) {
+        MesWmReturnSalesLineDO sourceLine = validateReturnSalesLineExists(sourceLineId);
+        boolean hasUnqualified = unqualifiedQuantity != null && unqualifiedQuantity.compareTo(BigDecimal.ZERO) > 0;
+        boolean hasQualified = qualifiedQuantity != null && qualifiedQuantity.compareTo(BigDecimal.ZERO) > 0;
+
+        // 1. 根据合格/不合格品数量，更新退货单行的质量状态
+        if (!hasUnqualified) {
+            // 1.A 情况一：全部合格
+            returnSalesLineMapper.updateById(new MesWmReturnSalesLineDO()
+                    .setId(sourceLineId).setQualityStatus(MesWmQualityStatusEnum.PASS.getStatus()));
+        } else if (!hasQualified) {
+            // 1.B 情况二：全部不合格
+            returnSalesLineMapper.updateById(new MesWmReturnSalesLineDO()
+                    .setId(sourceLineId).setQualityStatus(MesWmQualityStatusEnum.FAIL.getStatus()));
+        } else {
+            // 1.C 情况三：部分合格部分不合格 → 拆分行
+            // 1.C.1 新增一行不合格品
+            MesWmReturnSalesLineDO unqualifiedLine = new MesWmReturnSalesLineDO()
+                    .setReturnId(sourceLine.getReturnId())
+                    .setItemId(sourceLine.getItemId())
+                    .setQuantity(unqualifiedQuantity)
+                    .setBatchId(sourceLine.getBatchId())
+                    .setQualityStatus(MesWmQualityStatusEnum.FAIL.getStatus())
+                    .setRemark(sourceLine.getRemark());
+            returnSalesLineMapper.insert(unqualifiedLine);
+            // 1.C.2 更新原行为合格品
+            returnSalesLineMapper.updateById(new MesWmReturnSalesLineDO()
+                    .setId(sourceLineId)
+                    .setQuantity(qualifiedQuantity)
+                    .setQualityStatus(MesWmQualityStatusEnum.PASS.getStatus()));
+        }
+
+        // 2. 检查退货单下是否还有待检验的行，若全检完则将退货单状态设为"待上架"
+        if (sourceDocId != null) {
+            List<MesWmReturnSalesLineDO> allLines = returnSalesLineMapper.selectListByReturnId(sourceDocId);
+            boolean allInspected = !CollUtil.contains(allLines,
+                    line -> Objects.equals(line.getQualityStatus(), MesWmQualityStatusEnum.PENDING.getStatus()));
+            if (allInspected) {
+                returnSalesService.updateReturnSalesStatus(sourceDocId, MesWmReturnSalesStatusEnum.APPROVED.getStatus());
+            }
+        }
     }
 
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesService.java
index 7a9f15c..ccba7c3 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesService.java
@@ -88,6 +88,14 @@ public interface MesWmReturnSalesService {
     void cancelReturnSales(Long id);
 
     /**
+     * 更新销售退货单状态（供外部模块联动调用，如 RQC 检验完成后）
+     *
+     * @param id 编号
+     * @param status 目标状态
+     */
+    void updateReturnSalesStatus(Long id, Integer status);
+
+    /**
      * 校验销售退货单的数量：每行明细数量之和是否等于行退货数量
      *
      * @param id 编号
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesServiceImpl.java
index 8b941c9..675ed98 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesServiceImpl.java
@@ -239,4 +239,10 @@ public class MesWmReturnSalesServiceImpl implements MesWmReturnSalesService {
         return returnSales;
     }
 
+    @Override
+    public void updateReturnSalesStatus(Long id, Integer status) {
+        validateReturnSalesExists(id);
+        returnSalesMapper.updateById(new MesWmReturnSalesDO().setId(id).setStatus(status));
+    }
+
 }
diff --git a/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImplTest.java b/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImplTest.java
index ac174e0..4fc1da9 100644
--- a/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImplTest.java
+++ b/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/qc/rqc/MesQcRqcServiceImplTest.java
@@ -16,15 +16,15 @@ import org.junit.jupiter.api.Test;
 import org.springframework.context.annotation.Import;
 import org.springframework.test.context.bean.override.mockito.MockitoBean;
 
+import java.math.BigDecimal;
+
 import static cn.iocoder.yudao.framework.test.core.util.AssertUtils.assertServiceException;
 import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomLongId;
 import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomPojo;
 import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.QC_RQC_NOT_EXISTS;
 import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.QC_RQC_NOT_PREPARE;
 import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyLong;
-import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 
@@ -61,18 +61,22 @@ public class MesQcRqcServiceImplTest extends BaseDbUnitTest {
     public void testFinishRqc_successWithReturnIssue() {
         // 准备参数
         Long sourceLineId = randomLongId();
+        Long sourceDocId = randomLongId();
         Integer checkResult = 1;
+        BigDecimal qualifiedQty = new BigDecimal("80");
+        BigDecimal unqualifiedQty = new BigDecimal("20");
 
         // mock 数据
         MesQcRqcDO rqc = randomPojo(MesQcRqcDO.class, o -> {
             o.setStatus(MesQcStatusEnum.DRAFT.getStatus());
             o.setSourceDocType(MesBizTypeConstants.WM_RETURN_ISSUE);
+            o.setSourceDocId(sourceDocId);
             o.setSourceLineId(sourceLineId);
             o.setCheckResult(checkResult);
             // 设置数量通过 finishRqc 的数量校验：合格 + 不合格 = 检测数量
-            o.setCheckQuantity(new java.math.BigDecimal("100"));
-            o.setQualifiedQuantity(new java.math.BigDecimal("80"));
-            o.setUnqualifiedQuantity(new java.math.BigDecimal("20"));
+            o.setCheckQuantity(new BigDecimal("100"));
+            o.setQualifiedQuantity(qualifiedQty);
+            o.setUnqualifiedQuantity(unqualifiedQty);
         });
         rqcMapper.insert(rqc);
 
@@ -83,28 +87,36 @@ public class MesQcRqcServiceImplTest extends BaseDbUnitTest {
         MesQcRqcDO updatedRqc = rqcMapper.selectById(rqc.getId());
         assertEquals(MesQcStatusEnum.FINISHED.getStatus(), updatedRqc.getStatus());
 
-        // 断言：验证回写调用生产退料
-        verify(returnIssueLineService).updateReturnIssueLineWhenRqcFinish(eq(sourceLineId), eq(checkResult));
+        // 断言：验证回写调用生产退料（含拆分参数）
+        verify(returnIssueLineService).updateReturnIssueLineWhenRqcFinish(
+                eq(sourceLineId), eq(sourceDocId), eq(checkResult),
+                argThat(v -> v.compareTo(qualifiedQty) == 0),
+                argThat(v -> v.compareTo(unqualifiedQty) == 0));
         // 断言：未调用销售退货
-        verify(returnSalesLineService, never()).updateReturnSalesLineWhenRqcFinish(anyLong(), anyInt());
+        verify(returnSalesLineService, never()).updateReturnSalesLineWhenRqcFinish(
+                anyLong(), anyLong(), anyInt(), any(BigDecimal.class), any(BigDecimal.class));
     }
 
     @Test
     public void testFinishRqc_successWithReturnSales() {
         // 准备参数
         Long sourceLineId = randomLongId();
+        Long sourceDocId = randomLongId();
         Integer checkResult = 1;
+        BigDecimal qualifiedQty = new BigDecimal("90");
+        BigDecimal unqualifiedQty = new BigDecimal("10");
 
         // mock 数据
         MesQcRqcDO rqc = randomPojo(MesQcRqcDO.class, o -> {
             o.setStatus(MesQcStatusEnum.DRAFT.getStatus());
             o.setSourceDocType(MesBizTypeConstants.WM_RETURN_SALES);
+            o.setSourceDocId(sourceDocId);
             o.setSourceLineId(sourceLineId);
             o.setCheckResult(checkResult);
             // 设置数量通过 finishRqc 的数量校验：合格 + 不合格 = 检测数量
-            o.setCheckQuantity(new java.math.BigDecimal("100"));
-            o.setQualifiedQuantity(new java.math.BigDecimal("90"));
-            o.setUnqualifiedQuantity(new java.math.BigDecimal("10"));
+            o.setCheckQuantity(new BigDecimal("100"));
+            o.setQualifiedQuantity(qualifiedQty);
+            o.setUnqualifiedQuantity(unqualifiedQty);
         });
         rqcMapper.insert(rqc);
 
@@ -115,10 +127,14 @@ public class MesQcRqcServiceImplTest extends BaseDbUnitTest {
         MesQcRqcDO updatedRqc = rqcMapper.selectById(rqc.getId());
         assertEquals(MesQcStatusEnum.FINISHED.getStatus(), updatedRqc.getStatus());
 
-        // 断言：验证回写调用销售退货
-        verify(returnSalesLineService).updateReturnSalesLineWhenRqcFinish(eq(sourceLineId), eq(checkResult));
+        // 断言：验证回写调用销售退货（含拆分参数）
+        verify(returnSalesLineService).updateReturnSalesLineWhenRqcFinish(
+                eq(sourceLineId), eq(sourceDocId), eq(checkResult),
+                argThat(v -> v.compareTo(qualifiedQty) == 0),
+                argThat(v -> v.compareTo(unqualifiedQty) == 0));
         // 断言：未调用生产退料
-        verify(returnIssueLineService, never()).updateReturnIssueLineWhenRqcFinish(anyLong(), anyInt());
+        verify(returnIssueLineService, never()).updateReturnIssueLineWhenRqcFinish(
+                anyLong(), anyLong(), anyInt(), any(BigDecimal.class), any(BigDecimal.class));
     }
 
     @Test
diff --git a/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImplTest.java b/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImplTest.java
index 8243184..4934dca 100644
--- a/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImplTest.java
+++ b/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnissue/MesWmReturnIssueLineServiceImplTest.java
@@ -12,8 +12,11 @@ import org.springframework.test.context.bean.override.mockito.MockitoBean;
 
 import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemService;
 
+import java.math.BigDecimal;
+
 import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomPojo;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * {@link MesWmReturnIssueLineServiceImpl} 的单元测试类
@@ -36,37 +39,75 @@ public class MesWmReturnIssueLineServiceImplTest extends BaseDbUnitTest {
     private MesMdItemService itemService;
 
     @Test
-    public void testUpdateReturnIssueLineWhenRqcFinish_pass() {
-        // 准备参数
+    public void testUpdateReturnIssueLineWhenRqcFinish_allPass() {
+        // 准备参数：全部合格
         Integer checkResult = MesQcCheckResultEnum.PASS.getType();
+        BigDecimal qualifiedQty = new BigDecimal("100");
+        BigDecimal unqualifiedQty = BigDecimal.ZERO;
 
         // mock 数据
-        MesWmReturnIssueLineDO lineDO = randomPojo(MesWmReturnIssueLineDO.class);
+        MesWmReturnIssueLineDO lineDO = randomPojo(MesWmReturnIssueLineDO.class, o -> o.setQuantity(qualifiedQty));
         returnIssueLineMapper.insert(lineDO);
 
-        // 调用
-        returnIssueLineService.updateReturnIssueLineWhenRqcFinish(lineDO.getId(), checkResult);
+        // 调用（sourceDocId 传 null 不联动主表状态）
+        returnIssueLineService.updateReturnIssueLineWhenRqcFinish(
+                lineDO.getId(), null, checkResult, qualifiedQty, unqualifiedQty);
 
-        // 断言：验证 mapper 更新参数正确
+        // 断言：验证质量状态更新为合格
         MesWmReturnIssueLineDO updateLine = returnIssueLineMapper.selectById(lineDO.getId());
         assertEquals(MesWmQualityStatusEnum.PASS.getStatus(), updateLine.getQualityStatus());
     }
 
     @Test
-    public void testUpdateReturnIssueLineWhenRqcFinish_fail() {
-        // 准备参数
+    public void testUpdateReturnIssueLineWhenRqcFinish_allFail() {
+        // 准备参数：全部不合格
         Integer checkResult = MesQcCheckResultEnum.FAIL.getType();
+        BigDecimal qualifiedQty = BigDecimal.ZERO;
+        BigDecimal unqualifiedQty = new BigDecimal("100");
 
         // mock 数据
-        MesWmReturnIssueLineDO lineDO = randomPojo(MesWmReturnIssueLineDO.class);
+        MesWmReturnIssueLineDO lineDO = randomPojo(MesWmReturnIssueLineDO.class, o -> o.setQuantity(unqualifiedQty));
         returnIssueLineMapper.insert(lineDO);
 
         // 调用
-        returnIssueLineService.updateReturnIssueLineWhenRqcFinish(lineDO.getId(), checkResult);
+        returnIssueLineService.updateReturnIssueLineWhenRqcFinish(
+                lineDO.getId(), null, checkResult, qualifiedQty, unqualifiedQty);
 
-        // 断言：验证 mapper 更新参数正确
+        // 断言：验证质量状态更新为不合格
         MesWmReturnIssueLineDO updateLine = returnIssueLineMapper.selectById(lineDO.getId());
         assertEquals(MesWmQualityStatusEnum.FAIL.getStatus(), updateLine.getQualityStatus());
     }
 
+    @Test
+    public void testUpdateReturnIssueLineWhenRqcFinish_partialSplit() {
+        // 准备参数：部分合格部分不合格，触发行拆分
+        Integer checkResult = MesQcCheckResultEnum.PASS.getType();
+        BigDecimal qualifiedQty = new BigDecimal("80");
+        BigDecimal unqualifiedQty = new BigDecimal("20");
+
+        // mock 数据
+        MesWmReturnIssueLineDO lineDO = randomPojo(MesWmReturnIssueLineDO.class, o ->
+                o.setQuantity(new BigDecimal("100")));
+        returnIssueLineMapper.insert(lineDO);
+
+        // 调用
+        returnIssueLineService.updateReturnIssueLineWhenRqcFinish(
+                lineDO.getId(), null, checkResult, qualifiedQty, unqualifiedQty);
+
+        // 断言：原行变为合格，数量调整为合格数量
+        MesWmReturnIssueLineDO originalLine = returnIssueLineMapper.selectById(lineDO.getId());
+        assertEquals(MesWmQualityStatusEnum.PASS.getStatus(), originalLine.getQualityStatus());
+        assertEquals(0, qualifiedQty.compareTo(originalLine.getQuantity()));
+
+        // 断言：新增了一行不合格品
+        var allLines = returnIssueLineMapper.selectListByIssueId(lineDO.getIssueId());
+        assertEquals(2, allLines.size());
+        MesWmReturnIssueLineDO newLine = allLines.stream()
+                .filter(l -> !l.getId().equals(lineDO.getId()))
+                .findFirst().orElse(null);
+        assertNotNull(newLine);
+        assertEquals(MesWmQualityStatusEnum.FAIL.getStatus(), newLine.getQualityStatus());
+        assertEquals(0, unqualifiedQty.compareTo(newLine.getQuantity()));
+    }
+
 }
diff --git a/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImplTest.java b/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImplTest.java
index b8f9ff3..3ef35fe 100644
--- a/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImplTest.java
+++ b/yudao-module-mes/src/test/java/cn/iocoder/yudao/module/mes/service/wm/returnsales/MesWmReturnSalesLineServiceImplTest.java
@@ -12,8 +12,11 @@ import org.springframework.test.context.bean.override.mockito.MockitoBean;
 
 import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemService;
 
+import java.math.BigDecimal;
+
 import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomPojo;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * {@link MesWmReturnSalesLineServiceImpl} 的单元测试类
@@ -36,37 +39,75 @@ public class MesWmReturnSalesLineServiceImplTest extends BaseDbUnitTest {
     private MesMdItemService itemService;
 
     @Test
-    public void testUpdateReturnSalesLineWhenRqcFinish_pass() {
-        // 准备参数
+    public void testUpdateReturnSalesLineWhenRqcFinish_allPass() {
+        // 准备参数：全部合格
         Integer checkResult = MesQcCheckResultEnum.PASS.getType();
+        BigDecimal qualifiedQty = new BigDecimal("100");
+        BigDecimal unqualifiedQty = BigDecimal.ZERO;
 
         // mock 数据
-        MesWmReturnSalesLineDO lineDO = randomPojo(MesWmReturnSalesLineDO.class);
+        MesWmReturnSalesLineDO lineDO = randomPojo(MesWmReturnSalesLineDO.class, o -> o.setQuantity(qualifiedQty));
         returnSalesLineMapper.insert(lineDO);
 
-        // 调用
-        returnSalesLineService.updateReturnSalesLineWhenRqcFinish(lineDO.getId(), checkResult);
+        // 调用（sourceDocId 传 null 不联动主表状态）
+        returnSalesLineService.updateReturnSalesLineWhenRqcFinish(
+                lineDO.getId(), null, checkResult, qualifiedQty, unqualifiedQty);
 
-        // 断言：验证 mapper 更新参数正确
+        // 断言：验证质量状态更新为合格
         MesWmReturnSalesLineDO updateLine = returnSalesLineMapper.selectById(lineDO.getId());
         assertEquals(MesWmQualityStatusEnum.PASS.getStatus(), updateLine.getQualityStatus());
     }
 
     @Test
-    public void testUpdateReturnSalesLineWhenRqcFinish_fail() {
-        // 准备参数
+    public void testUpdateReturnSalesLineWhenRqcFinish_allFail() {
+        // 准备参数：全部不合格
         Integer checkResult = MesQcCheckResultEnum.FAIL.getType();
+        BigDecimal qualifiedQty = BigDecimal.ZERO;
+        BigDecimal unqualifiedQty = new BigDecimal("100");
 
         // mock 数据
-        MesWmReturnSalesLineDO lineDO = randomPojo(MesWmReturnSalesLineDO.class);
+        MesWmReturnSalesLineDO lineDO = randomPojo(MesWmReturnSalesLineDO.class, o -> o.setQuantity(unqualifiedQty));
         returnSalesLineMapper.insert(lineDO);
 
         // 调用
-        returnSalesLineService.updateReturnSalesLineWhenRqcFinish(lineDO.getId(), checkResult);
+        returnSalesLineService.updateReturnSalesLineWhenRqcFinish(
+                lineDO.getId(), null, checkResult, qualifiedQty, unqualifiedQty);
 
-        // 断言：验证 mapper 更新参数正确
+        // 断言：验证质量状态更新为不合格
         MesWmReturnSalesLineDO updateLine = returnSalesLineMapper.selectById(lineDO.getId());
         assertEquals(MesWmQualityStatusEnum.FAIL.getStatus(), updateLine.getQualityStatus());
     }
 
+    @Test
+    public void testUpdateReturnSalesLineWhenRqcFinish_partialSplit() {
+        // 准备参数：部分合格部分不合格，触发行拆分
+        Integer checkResult = MesQcCheckResultEnum.PASS.getType();
+        BigDecimal qualifiedQty = new BigDecimal("70");
+        BigDecimal unqualifiedQty = new BigDecimal("30");
+
+        // mock 数据
+        MesWmReturnSalesLineDO lineDO = randomPojo(MesWmReturnSalesLineDO.class, o ->
+                o.setQuantity(new BigDecimal("100")));
+        returnSalesLineMapper.insert(lineDO);
+
+        // 调用
+        returnSalesLineService.updateReturnSalesLineWhenRqcFinish(
+                lineDO.getId(), null, checkResult, qualifiedQty, unqualifiedQty);
+
+        // 断言：原行变为合格，数量调整为合格数量
+        MesWmReturnSalesLineDO originalLine = returnSalesLineMapper.selectById(lineDO.getId());
+        assertEquals(MesWmQualityStatusEnum.PASS.getStatus(), originalLine.getQualityStatus());
+        assertEquals(0, qualifiedQty.compareTo(originalLine.getQuantity()));
+
+        // 断言：新增了一行不合格品
+        var allLines = returnSalesLineMapper.selectListByReturnId(lineDO.getReturnId());
+        assertEquals(2, allLines.size());
+        MesWmReturnSalesLineDO newLine = allLines.stream()
+                .filter(l -> !l.getId().equals(lineDO.getId()))
+                .findFirst().orElse(null);
+        assertNotNull(newLine);
+        assertEquals(MesWmQualityStatusEnum.FAIL.getStatus(), newLine.getQualityStatus());
+        assertEquals(0, unqualifiedQty.compareTo(newLine.getQuantity()));
+    }
+
 }