diff --git a/urbanops-module-workorder/src/main/java/com/zteits/urbanops/module/workorder/dal/mysql/maininfo/MainInfoMapper.java b/urbanops-module-workorder/src/main/java/com/zteits/urbanops/module/workorder/dal/mysql/maininfo/MainInfoMapper.java
index bd5e4a1..585fc4c 100644
--- a/urbanops-module-workorder/src/main/java/com/zteits/urbanops/module/workorder/dal/mysql/maininfo/MainInfoMapper.java
+++ b/urbanops-module-workorder/src/main/java/com/zteits/urbanops/module/workorder/dal/mysql/maininfo/MainInfoMapper.java
@@ -25,16 +25,20 @@ public interface MainInfoMapper extends BaseMapperX<MainInfoDO> {
         LambdaQueryWrapperX<MainInfoDO> queryWrapper = new LambdaQueryWrapperX<>();
         String[] busiLineArr = reqVO.getBusiLine().split(",");
         // 拼接 OR 条件：FIND_IN_SET(a, busi_line) > 0 OR FIND_IN_SET(c, busi_line) > 0
-        for (int i = 0; i < busiLineArr.length; i++) {
-            String val = busiLineArr[i].trim();
-            if (StringUtils.hasText(val)) {
-                if (i == 0) {
-                    queryWrapper.apply("FIND_IN_SET({0}, busi_line) > 0", val);
-                } else {
-                    queryWrapper.or().apply("FIND_IN_SET({0}, busi_line) > 0", val);
+        queryWrapper.nested(wrapper -> {
+            for (int i = 0; i < busiLineArr.length; i++) {
+                String val = busiLineArr[i].trim();
+                if (StringUtils.hasText(val)) {
+                    if (i == 0) {
+                        // 第一个有效条件：直接 apply
+                        wrapper.apply("FIND_IN_SET({0}, busi_line) > 0", val);
+                    } else {
+                        // 后续有效条件：or() + apply
+                        wrapper.or().apply("FIND_IN_SET({0}, busi_line) > 0", val);
+                    }
                 }
             }
-        }
+        });
         queryWrapper.eqIfPresent(MainInfoDO::getOrderNo, reqVO.getOrderNo())
                 .likeIfPresent(MainInfoDO::getOrderName, reqVO.getOrderName())
                 .eqIfPresent(MainInfoDO::getSourceId, reqVO.getSourceId())