diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java
index bc1f1b6..753d3c8 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java
@@ -50,4 +50,9 @@ public interface OaProjectScheduleStepMapper extends BaseMapperPlus<OaProjectSch
      * 按项目汇总进度步骤：总数、已完成(2)、待验收(1)
      */
     List<ProjectScheduleStepStatsDto> selectStepStatsGroupByProjectId(@Param("projectIds") Collection<Long> projectIds);
+
+    /**
+     * 根据 schedule_id 批量更新节点负责人（仅更新 node_header 不为空的记录）
+     */
+    int updateNodeHeaderByScheduleId(@Param("scheduleId") Long scheduleId, @Param("nodeHeader") String nodeHeader);
 }
diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleServiceImpl.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleServiceImpl.java
index 4c6f80c..e016ef2 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleServiceImpl.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleServiceImpl.java
@@ -28,6 +28,7 @@ import com.ruoyi.oa.domain.bo.OaProjectScheduleBo;
 import com.ruoyi.oa.domain.vo.OaProjectScheduleVo;
 import com.ruoyi.oa.domain.OaProjectSchedule;
 import com.ruoyi.oa.mapper.OaProjectScheduleMapper;
+import com.ruoyi.oa.mapper.OaProjectScheduleStepMapper;
 import com.ruoyi.oa.service.IOaProjectOperationLogService;
 import com.ruoyi.oa.service.IOaProjectScheduleService;
 import org.springframework.context.annotation.Lazy;
@@ -51,6 +52,8 @@ public class OaProjectScheduleServiceImpl implements IOaProjectScheduleService {
 
     private final OaProjectScheduleMapper baseMapper;
 
+    private final OaProjectScheduleStepMapper scheduleStepMapper;
+
     private final OaScheduleTemplateMapper scheduleTemplateMapper;
 
     private final IOaScheduleTemplateStepService scheduleTemplateStepService;
@@ -221,7 +224,11 @@ public class OaProjectScheduleServiceImpl implements IOaProjectScheduleService {
         OaProjectSchedule update = BeanUtil.toBean(bo, OaProjectSchedule.class);
         validEntityBeforeSave(update);
         boolean ok = baseMapper.updateById(update) > 0;
-        if (ok) {
+        if (ok && bo.getSteward() != null) {
+            scheduleStepMapper.updateNodeHeaderByScheduleId(bo.getScheduleId(), bo.getSteward());
+            operationLogService.recordLog(bo.getProjectId(), 1, bo.getScheduleId(), "项目进度",
+                    2, "修改项目进度", null, null);
+        } else if (ok) {
             operationLogService.recordLog(bo.getProjectId(), 1, bo.getScheduleId(), "项目进度",
                     2, "修改项目进度", null, null);
         }
diff --git a/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml b/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
index 56c117f..8d48c40 100644
--- a/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
+++ b/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
@@ -300,4 +300,14 @@
         GROUP BY sch.project_id
     </select>
 
+    <update id="updateNodeHeaderByScheduleId">
+        UPDATE oa_project_schedule_step
+        SET node_header = #{nodeHeader}
+        WHERE schedule_id = #{scheduleId}
+          AND del_flag = '0'
+          AND use_flag = '1'
+          AND node_header IS NOT NULL
+          AND node_header != ''
+    </update>
+
 </mapper>