diff --git a/api/model/biz_audit_log.js b/api/model/biz_audit_log.js
index 107125e..7b4b49a 100644
--- a/api/model/biz_audit_log.js
+++ b/api/model/biz_audit_log.js
@@ -30,6 +30,12 @@ module.exports = (db) => {
         type: Sequelize.JSON,
         allowNull: true,
       },
+      // 表字段存在且非空无默认时，须由模型声明，否则 insert 缺列报错
+      created_at: {
+        type: Sequelize.DATE,
+        allowNull: false,
+        defaultValue: Sequelize.NOW,
+      },
     },
     {
       tableName: "biz_audit_log",
diff --git a/api/utils/biz_audit.js b/api/utils/biz_audit.js
index 87b38e7..7608dc3 100644
--- a/api/utils/biz_audit.js
+++ b/api/utils/biz_audit.js
@@ -13,6 +13,7 @@ async function logAudit(p) {
       resource_type: p.resource_type || "",
       resource_id: p.resource_id != null ? p.resource_id : null,
       detail: p.detail || null,
+      created_at: new Date(),
     });
   } catch (e) {
     logs.error("[biz_audit] 写入失败", e);