diff --git a/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java b/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java
index b4d70eb..af7cf4e 100644
--- a/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java
+++ b/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java
@@ -20,7 +20,7 @@ import lombok.Setter;
  * </p>
  *
  * @author gaoxq
- * @since 2026-03-12
+ * @since 2026-03-13
  */
 @Getter
 @Setter
@@ -192,6 +192,12 @@ public class ItemInfo extends BaseEntity implements Serializable {
     @TableField("is_deleted")
     private String isDeleted;
 
+    /**
+     * 业务主键编号
+     */
+    @TableField("biz_key")
+    private String bizKey;
+
     /**
      * 指标求和
      */
diff --git a/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java b/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java
index 35c015d..29c31d3 100644
--- a/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java
+++ b/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java
@@ -9,7 +9,7 @@ import com.mini.mybigscreen.biz.domain.ItemInfo;
  * </p>
  *
  * @author gaoxq
- * @since 2026-03-12
+ * @since 2026-03-13
  */
 public interface ItemInfoMapper extends MPJBaseMapper<ItemInfo> {
 
diff --git a/src/main/resources/mapper/ItemInfoMapper.xml b/src/main/resources/mapper/ItemInfoMapper.xml
index e1f2ec8..b90e688 100644
--- a/src/main/resources/mapper/ItemInfoMapper.xml
+++ b/src/main/resources/mapper/ItemInfoMapper.xml
@@ -31,6 +31,7 @@
         <result column="index_15" property="index15" />
         <result column="update_time" property="updateTime" />
         <result column="is_deleted" property="isDeleted" />
+        <result column="biz_key" property="bizKey" />
         <result column="index_sum" property="indexSum" />
         <result column="index_avg" property="indexAvg" />
         <result column="index_max" property="indexMax" />
@@ -39,7 +40,7 @@
 
     <!-- 通用查询结果列 -->
     <sql id="Base_Column_List">
-        create_time, id, item_name, item_code, title, seq, ym, cycle, req_param, x_axis, index_01, index_02, index_03, index_04, index_05, index_06, index_07, index_08, index_09, index_10, index_11, index_12, index_13, index_14, index_15, update_time, is_deleted, index_sum, index_avg, index_max, index_min
+        create_time, id, item_name, item_code, title, seq, ym, cycle, req_param, x_axis, index_01, index_02, index_03, index_04, index_05, index_06, index_07, index_08, index_09, index_10, index_11, index_12, index_13, index_14, index_15, update_time, is_deleted, biz_key, index_sum, index_avg, index_max, index_min
     </sql>
 
 </mapper>