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 00fcea7..dfce779 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
@@ -8,6 +8,7 @@ import com.ruoyi.common.core.mapper.BaseMapperPlus;
 import org.apache.ibatis.annotations.Param;
 import com.baomidou.mybatisplus.core.toolkit.Constants;
 
+import java.util.Collection;
 import java.util.List;
 
 /**
@@ -29,4 +30,11 @@ public interface OaProjectScheduleStepMapper extends BaseMapperPlus<OaProjectSch
     OaProjectScheduleStepVo selectByCurrentStepAndScheduleId(@Param("currentStep") Long currentStep, @Param("scheduleId") Long scheduleId);
 
     void saveBatch(List<OaProjectScheduleStep> entities);
+
+    /**
+     * 根据 schedule_id 批量删除步骤记录
+     * @param scheduleIds 主表的 schedule_id 集合
+     * @return 删除的记录数
+     */
+    int deleteByScheduleIds(@Param("scheduleIds") Collection<Long> scheduleIds);
 }
diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java
index 5a7da49..c215a59 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java
@@ -53,6 +53,8 @@ public interface IOaProjectScheduleStepService{
      */
     Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
 
+    Boolean deleteByScheduleIds(Collection<Long> scheduleIds, Boolean isValid);
+
     OaProjectScheduleStepVo maxStepByScheduleId(Long scheduleId);
 
     void updateByStepAndScheduleId(Long currentStep,Long scheduleId);
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 a4ffe91..a2a0aa7 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
@@ -184,6 +184,8 @@ public class OaProjectScheduleServiceImpl implements IOaProjectScheduleService {
         if(isValid){
             //TODO 做一些业务上的校验,判断是否需要校验
         }
+        //同时在删除对应的项目进度步骤
+        projectScheduleStepService.deleteByScheduleIds(ids, false);
         return baseMapper.deleteBatchIds(ids) > 0;
     }
 
diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java
index a740dfd..403a851 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java
@@ -202,6 +202,13 @@ public class OaProjectScheduleStepServiceImpl implements IOaProjectScheduleStepS
         }
         return baseMapper.deleteBatchIds(ids) > 0;
     }
+    @Override
+    public Boolean deleteByScheduleIds(Collection<Long> scheduleIds, Boolean isValid) {
+        if (isValid) {
+            // 如需校验，添加业务校验逻辑（例如：判断步骤是否存在关联数据等）
+        }
+        return projectScheduleStepMapper.deleteByScheduleIds(scheduleIds) > 0;
+    }
 
     @Override
     public OaProjectScheduleStepVo maxStepByScheduleId(Long scheduleId) {
diff --git a/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml b/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
index ea9335d..a8afd90 100644
--- a/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
+++ b/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
@@ -89,6 +89,13 @@
           AND del_flag = '0'
         and use_flag = '1'
     </update>
+    <delete id="deleteByScheduleIds">
+        DELETE FROM oa_project_schedule_step
+        WHERE schedule_id IN
+        <foreach collection="scheduleIds" item="id" open="(" separator="," close=")">
+            #{id}
+        </foreach>
+    </delete>
     <select id="maxStepByScheduleId" resultMap="OaProjectScheduleStepResult">
         SELECT opss.track_id,
                opss.accessory,