diff --git a/riis-system/src/main/resources/mapper/basedata/SubstationComponentMapper.xml b/riis-system/src/main/resources/mapper/basedata/SubstationComponentMapper.xml
index 98c62f7..63bcf32 100644
--- a/riis-system/src/main/resources/mapper/basedata/SubstationComponentMapper.xml
+++ b/riis-system/src/main/resources/mapper/basedata/SubstationComponentMapper.xml
@@ -6,34 +6,30 @@
                     componentName-->
     <select id="getComponentByBayPage" resultType="java.util.Map">
         SELECT
-        *
+        t.*
         FROM
-        iis_substation_component
+        iis_substation_component t  -- 明确主表别名
+        LEFT JOIN iis_algorithm_class_component aac
+        ON t.component_id = aac.component_id
+        AND aac.algorithm_id = #{algorithmId}  -- 提前过滤子查询
         WHERE
-        1=1
+        1 = 1
         <if test="stationCode != null and stationCode != ''">
-            AND t.station_code=#{stationCode}
+            AND t.station_code = #{stationCode}
         </if>
         <if test="areaId != null and areaId != ''">
-            AND t.area_id=#{areaId}
+            AND t.area_id = #{areaId}
         </if>
         <if test="bayId != null and bayId != ''">
-            AND t.bay_id=#{bayId}
+            AND t.bay_id = #{bayId}
         </if>
         <if test="mainDeviceId != null and mainDeviceId != ''">
-            AND t.main_device_id=#{mainDeviceId}
+            AND t.main_device_id = #{mainDeviceId}
         </if>
         <if test="componentName != null and componentName != ''">
-            AND t.component_name like concat('%',#{componentName},'%')
+            AND t.component_name LIKE CONCAT('%',#{componentName}, '%')
         </if>
-        AND
-        component_id NOT IN (
-        SELECT
-        component_id
-        FROM
-        iis_algorithm_class_component
-        WHERE
-        algorithm_id = #{algorithmId})
+        AND aac.component_id IS NULL
 
     </select>
 </mapper>