diff --git a/data-center-business-controller/src/main/resources/db/migration/V93__thumbnail_sys_alarm_base64.sql b/data-center-business-controller/src/main/resources/db/migration/V93__thumbnail_sys_alarm_base64.sql
new file mode 100644
index 0000000..34b7570
--- /dev/null
+++ b/data-center-business-controller/src/main/resources/db/migration/V93__thumbnail_sys_alarm_base64.sql
@@ -0,0 +1 @@
+ALTER TABLE basic_asset_class_big ADD `thumbnail_sys_alarm_base64` text COMMENT '系统告警图片转base64格式' after `thumbnail_dis_base64`;