diff --git a/zc-business/src/main/java/com/zc/business/controller/DcDeviceOnlineController.java b/zc-business/src/main/java/com/zc/business/controller/DcDeviceOnlineController.java
index e1054b1c..30dcf139 100644
--- a/zc-business/src/main/java/com/zc/business/controller/DcDeviceOnlineController.java
+++ b/zc-business/src/main/java/com/zc/business/controller/DcDeviceOnlineController.java
@@ -63,6 +63,9 @@ public class DcDeviceOnlineController extends BaseController {
         if(ObjectUtils.isEmpty(deviceTypes)) {
             return getDataTable(new ArrayList<>());
         }
+        if(StringUtil.isEmpty(orderByField) ||"time".equals(orderByField)) {
+            orderByField = "online_rate";
+        }
         startPage();
         List<OnlineSum> sums = onlineSumService.queryByDeviceTypesOfToday(deviceTypes, orderByField, orderDirection, searchValue);
         Map<String,OnlineSum> onlineSumMap = redisCache.getCacheMap(RedisKeyConstants.DEVICE_ONLINE);