diff --git a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/SafetyCenterSubitemContactsMapper.java b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/SafetyCenterSubitemContactsMapper.java
index c90c9b10..e681f914 100644
--- a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/SafetyCenterSubitemContactsMapper.java
+++ b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/SafetyCenterSubitemContactsMapper.java
@@ -2,6 +2,9 @@ package com.jero.functionalsafetycenter.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.jero.functionalsafetycenter.entity.SafetyCenterSubitemContacts;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
 
 /**
   *
@@ -9,4 +12,5 @@ import com.jero.functionalsafetycenter.entity.SafetyCenterSubitemContacts;
   *@date 2024-06-12 15:13
   */
 public interface SafetyCenterSubitemContactsMapper extends BaseMapper<SafetyCenterSubitemContacts> {
+    List<SafetyCenterSubitemContacts> listByParentIdAndContactIdList(@Param("parentId") String parentId, @Param("contactIdList") List<String> contactIdList);
 }
\ No newline at end of file
diff --git a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/xml/SafetyCenterSubitemContactsMapper.xml b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/xml/SafetyCenterSubitemContactsMapper.xml
index 692d7a22..4c9c14b0 100644
--- a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/xml/SafetyCenterSubitemContactsMapper.xml
+++ b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/mapper/xml/SafetyCenterSubitemContactsMapper.xml
@@ -21,4 +21,18 @@
     id, project_id, subitem_id, company_id, contacts_id, remarks, order_num, create_by, 
     create_time, update_by, update_time
   </sql>
+
+  <select id="listByParentIdAndContactIdList" resultMap="BaseResultMap">
+    select *
+    from pay_functional_safety_center_subitem_contacts pfscsc
+           left join pay_functional_safety_center_subitem pfscs on pfscsc.subitem_id = pfscs.id
+           left join pay_functional_safety_center pfsc on pfscs.project_id = pfsc.id
+    <where>
+      pfscs.project_id = #{parentId}
+        and pfscsc.contacts_id in
+      <foreach item="item" index="index" collection="contactIdList" open="(" separator="," close=")">
+        #{item}
+      </foreach>
+    </where>
+  </select>
 </mapper>
\ No newline at end of file
diff --git a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemContactsService.java b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemContactsService.java
index f7de7294..41fd66e3 100644
--- a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemContactsService.java
+++ b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemContactsService.java
@@ -29,4 +29,7 @@ public class SafetyCenterSubitemContactsService extends ServiceImpl<SafetyCenter
         return this.list(wrapper);
     }
 
+    public List<SafetyCenterSubitemContacts> listByParentIdAndContactIdList(String parentId, List<String> contactIdList){
+        return baseMapper.listByParentIdAndContactIdList(parentId,contactIdList);
+    }
 }
diff --git a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemService.java b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemService.java
index 06d20cc2..4d64c455 100644
--- a/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemService.java
+++ b/jero-boot-incoming-payment/src/main/java/com/jero/functionalsafetycenter/service/SafetyCenterSubitemService.java
@@ -134,6 +134,13 @@ public class SafetyCenterSubitemService extends ServiceImpl<SafetyCenterSubitemM
             if (!parentContactIdList.containsAll(contactIdList)) {
                 throw new JeroBootException("联系人无法添加到当前项目");
             }
+            //区分删除的联系人
+            List<SafetyCenterSubitemContacts> oldContactList = contactsService.listBySubitemId(subitemId);
+            List<String> oldContactIdList = oldContactList.stream().map(SafetyCenterSubitemContacts::getContactsId).distinct().collect(Collectors.toList());
+            //取差值，得到删除的联系人
+            oldContactIdList.removeAll(contactIdList);
+            //删除子项目的联系人
+            this.deleteChildrenByParentId(parentId,contactIdList);
         }
         this.updateById(safetyCenterSubitem);
         //先删除之前保存的
@@ -210,4 +217,17 @@ public class SafetyCenterSubitemService extends ServiceImpl<SafetyCenterSubitemM
     public List<SafetyCenterSubitem> listByParentIdAndCompanyId(String parentId,String companyId){
         return baseMapper.listByParentIdAndCompanyId(parentId,companyId);
     }
+
+    /**
+     * 删除子项目的联系人
+     */
+    public void deleteChildrenByParentId(String parentId, List<String> contactIdList) {
+        List<SafetyCenterSubitemContacts> contactList = contactsService.listByParentIdAndContactIdList(parentId, contactIdList);
+        List<String> collect = contactList.stream().map(SafetyCenterSubitemContacts::getId).collect(Collectors.toList());
+        contactsService.removeByIds(collect);
+        List<String> projectIdList = contactList.stream().map(SafetyCenterSubitemContacts::getProjectId).distinct().collect(Collectors.toList());
+        for (String projectId : projectIdList) {
+            deleteChildrenByParentId(projectId,contactIdList);
+        }
+    }
 }