diff --git a/klp-flow/src/main/java/com/klp/flow/controller/SchProdScheduleItemController.java b/klp-flow/src/main/java/com/klp/flow/controller/SchProdScheduleItemController.java
index 9ddc6a593..4ea667bf7 100644
--- a/klp-flow/src/main/java/com/klp/flow/controller/SchProdScheduleItemController.java
+++ b/klp-flow/src/main/java/com/klp/flow/controller/SchProdScheduleItemController.java
@@ -19,6 +19,7 @@ import com.klp.common.enums.BusinessType;
 import com.klp.common.utils.poi.ExcelUtil;
 import com.klp.flow.domain.vo.SchProdScheduleItemVo;
 import com.klp.flow.domain.bo.SchProdScheduleItemBo;
+import com.klp.flow.domain.bo.SchProdScheduleItemMergeBo;
 import com.klp.flow.service.ISchProdScheduleItemService;
 import com.klp.common.core.page.TableDataInfo;
 
@@ -106,4 +107,14 @@ public class SchProdScheduleItemController extends BaseController {
                           @PathVariable Long[] scheduleIds) {
         return toAjax(iSchProdScheduleItemService.deleteWithValidByIds(Arrays.asList(scheduleIds), true));
     }
+
+    /**
+     * 合并排产单主加明细可合并：先删除被合并的记录，再插入合并后的新记录
+     */
+    @Log(title = "排产单主加明细可合并", businessType = BusinessType.UPDATE)
+    @RepeatSubmit()
+    @PostMapping("/merge")
+    public R<Void> merge(@Validated @RequestBody SchProdScheduleItemMergeBo mergeBo) {
+        return toAjax(iSchProdScheduleItemService.mergeByBo(mergeBo));
+    }
 }
diff --git a/klp-flow/src/main/java/com/klp/flow/domain/bo/SchProdScheduleItemMergeBo.java b/klp-flow/src/main/java/com/klp/flow/domain/bo/SchProdScheduleItemMergeBo.java
new file mode 100644
index 000000000..13979c275
--- /dev/null
+++ b/klp-flow/src/main/java/com/klp/flow/domain/bo/SchProdScheduleItemMergeBo.java
@@ -0,0 +1,29 @@
+package com.klp.flow.domain.bo;
+
+import lombok.Data;
+import javax.validation.Valid;
+import javax.validation.constraints.NotEmpty;
+import java.util.List;
+
+/**
+ * 排产单主加明细可合并 - 合并请求对象
+ *
+ * @author klp
+ * @date 2026-06-26
+ */
+@Data
+public class SchProdScheduleItemMergeBo {
+
+    /**
+     * 需要被合并删除的记录ID列表
+     */
+    @NotEmpty(message = "被合并记录ID不能为空")
+    private List<Long> ids;
+
+    /**
+     * 合并后的新记录
+     */
+    @Valid
+    private SchProdScheduleItemBo mergedBo;
+
+}
diff --git a/klp-flow/src/main/java/com/klp/flow/service/ISchProdScheduleItemService.java b/klp-flow/src/main/java/com/klp/flow/service/ISchProdScheduleItemService.java
index 8c43ff478..cef5243bf 100644
--- a/klp-flow/src/main/java/com/klp/flow/service/ISchProdScheduleItemService.java
+++ b/klp-flow/src/main/java/com/klp/flow/service/ISchProdScheduleItemService.java
@@ -3,6 +3,7 @@ package com.klp.flow.service;
 import com.klp.flow.domain.SchProdScheduleItem;
 import com.klp.flow.domain.vo.SchProdScheduleItemVo;
 import com.klp.flow.domain.bo.SchProdScheduleItemBo;
+import com.klp.flow.domain.bo.SchProdScheduleItemMergeBo;
 import com.klp.common.core.page.TableDataInfo;
 import com.klp.common.core.domain.PageQuery;
 
@@ -51,4 +52,9 @@ public interface ISchProdScheduleItemService {
      * 校验并批量删除排产单主加明细可合并信息
      */
     Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
+
+    /**
+     * 合并多条排产单主加明细可合并记录：先删除被合并的记录，再插入合并后的新记录
+     */
+    Boolean mergeByBo(SchProdScheduleItemMergeBo mergeBo);
 }
diff --git a/klp-flow/src/main/java/com/klp/flow/service/impl/SchProdScheduleItemServiceImpl.java b/klp-flow/src/main/java/com/klp/flow/service/impl/SchProdScheduleItemServiceImpl.java
index 457835729..1359cf513 100644
--- a/klp-flow/src/main/java/com/klp/flow/service/impl/SchProdScheduleItemServiceImpl.java
+++ b/klp-flow/src/main/java/com/klp/flow/service/impl/SchProdScheduleItemServiceImpl.java
@@ -10,10 +10,12 @@ import com.klp.common.utils.StringUtils;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import com.klp.flow.domain.bo.SchProdScheduleItemBo;
+import com.klp.flow.domain.bo.SchProdScheduleItemMergeBo;
 import com.klp.flow.domain.vo.SchProdScheduleItemVo;
 import com.klp.flow.domain.SchProdScheduleItem;
 import com.klp.flow.mapper.SchProdScheduleItemMapper;
 import com.klp.flow.service.ISchProdScheduleItemService;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -158,4 +160,23 @@ public class SchProdScheduleItemServiceImpl implements ISchProdScheduleItemServi
         }
         return baseMapper.deleteBatchIds(ids) > 0;
     }
+
+    /**
+     * 合并多条排产单主加明细可合并记录：先删除被合并的记录，再插入合并后的新记录
+     */
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Boolean mergeByBo(SchProdScheduleItemMergeBo mergeBo) {
+        // 先删除被合并的记录
+        baseMapper.deleteBatchIds(mergeBo.getIds());
+        // 再插入合并后的新记录
+        SchProdScheduleItemBo mergedBo = mergeBo.getMergedBo();
+        SchProdScheduleItem add = BeanUtil.toBean(mergedBo, SchProdScheduleItem.class);
+        validEntityBeforeSave(add);
+        boolean flag = baseMapper.insert(add) > 0;
+        if (flag) {
+            mergedBo.setScheduleId(add.getScheduleId());
+        }
+        return flag;
+    }
 }