diff --git a/ruoyi-admin/src/main/java/com/ruoyi/system/mapper/SysSalesOrderChildMapper.java b/ruoyi-admin/src/main/java/com/ruoyi/system/mapper/SysSalesOrderChildMapper.java
index 60ccc22a..9d455049 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/system/mapper/SysSalesOrderChildMapper.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/system/mapper/SysSalesOrderChildMapper.java
@@ -1,6 +1,7 @@
 package com.ruoyi.system.mapper;
 
 import com.ruoyi.system.domain.SysSalesOrderChild;
+import org.apache.ibatis.annotations.Param;
 import org.mapstruct.Mapper;
 
 import java.util.List;
@@ -20,5 +21,6 @@ public interface SysSalesOrderChildMapper {
 
         /*删除ids中的quoteId的所有子项*/
         int deleteSysSalesOrderChildByQuoteIds(String[] ids);
+        SysSalesOrderChild selectOneByQuoteIdAndMaterialCode(@Param("quoteId") String quoteId, @Param("materialCode") String materialCode);
 
 }
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/system/service/ISysSalesOrderChildService.java b/ruoyi-admin/src/main/java/com/ruoyi/system/service/ISysSalesOrderChildService.java
index 83d5954b..ff4fcaf0 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/system/service/ISysSalesOrderChildService.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/system/service/ISysSalesOrderChildService.java
@@ -21,4 +21,6 @@ public interface ISysSalesOrderChildService {
         /*删除ids中的quoteId的所有子项*/
         int deleteSysSalesOrderChildByQuoteIds(String[] ids);
 
+        SysSalesOrderChild selectOneByQuoteIdAndMaterialCode(String quoteId,String materialCode);
+
 }
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/system/service/impl/SysSalesOrderChildServiceImpl.java b/ruoyi-admin/src/main/java/com/ruoyi/system/service/impl/SysSalesOrderChildServiceImpl.java
index b5267514..255ed536 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/system/service/impl/SysSalesOrderChildServiceImpl.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/system/service/impl/SysSalesOrderChildServiceImpl.java
@@ -46,4 +46,9 @@ public class SysSalesOrderChildServiceImpl implements ISysSalesOrderChildService
     public int deleteSysSalesOrderChildByQuoteIds(String[] ids) {
         return sysCustomerQuoteChildMapper.deleteSysSalesOrderChildByQuoteIds(ids);
     }
+
+    @Override
+    public SysSalesOrderChild selectOneByQuoteIdAndMaterialCode(String quoteId, String materialCode) {
+        return sysCustomerQuoteChildMapper.selectOneByQuoteIdAndMaterialCode(quoteId,materialCode);
+    }
 }
diff --git a/ruoyi-admin/src/main/resources/mapper/system/SysSalesOrderChildMapper.xml b/ruoyi-admin/src/main/resources/mapper/system/SysSalesOrderChildMapper.xml
index 93ae63db..45b29624 100644
--- a/ruoyi-admin/src/main/resources/mapper/system/SysSalesOrderChildMapper.xml
+++ b/ruoyi-admin/src/main/resources/mapper/system/SysSalesOrderChildMapper.xml
@@ -69,6 +69,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <include refid="selectSysSalesOrderChild"/>
         where a.quoteId = #{quoteId}
     </select>
+    <select id="selectOneByQuoteIdAndMaterialCode" resultMap="SysSalesOrderChildResult">
+        <include refid="selectSysSalesOrderChild"/>
+        where a.quoteId = #{quoteId}
+        and a.materialCode = #{materialCode}
+    </select>
     <insert id="insertSysSalesOrderChild" parameterType="SysSalesOrderChild" useGeneratedKeys="true" keyProperty="id">
         insert into sys_sales_order_child
         <trim prefix="(" suffix=")" suffixOverrides=",">