diff --git a/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml b/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml
index 72bbfa8a..09345f02 100644
--- a/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml
+++ b/ruoyi-sip/src/main/resources/mapper/sip/ProjectOrderInfoMapper.xml
@@ -95,12 +95,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         )
     </select>
     <select id="selectMaxOrderCode" resultType="java.lang.Integer">
-        select ifnull( max(SUBSTR( order_code FROM 16 FOR 3 )), 0 )
+        select ifnull( max(SUBSTR( order_code FROM LENGTH(#{province})+1 FOR 3 )), 0 )
         from project_order_info
         where order_code like concat(#{province}, '%')
 
-
-
     </select>
     <select id="selectAgentProvinceByProjectId" resultType="java.lang.String">
         select t2.province