diff --git a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
index 00a54a1b..e12e1230 100644
--- a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
+++ b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
@@ -227,6 +227,12 @@ public class AssignmentService : IAssignmentService
 
     private async Task<List<TaskDto>> GetDataAsync(DeviceTaskGetRequest request)
     {
+        var factories = new List<string>();
+        if (request.Factory.IsPresent())
+        {
+            factories = request.Factory.Split(',').ToList();
+        }
+
         var data = await CommonHelper.RetryAsync(async () =>
         {
             var page = await _dbContext.Queryable<DeviceTaskEntity>()
@@ -242,7 +248,7 @@ public class AssignmentService : IAssignmentService
                 .WhereIF(request.IsProcess, deviceTask => deviceTask.Status == DeviceTaskStatusEnumType.Process
                                                           && SqlFunc.DateDiff(DateType.Minute, deviceTask.ModifiedTime, DateTime.Now) > 10)
                 .WhereIF(request.DeviceUniqueNo.IsPresent(), (deviceTask, device) => deviceTask.DeviceUniqueNo == request.DeviceUniqueNo)
-                .WhereIF(request.Factory.IsPresent(), (deviceTask, device) => deviceTask.TenantId == request.Factory)
+                .WhereIF(factories.Any(), (deviceTask, device) => factories.Contains(deviceTask.TenantId))
                 .WhereIF(request.Types.IsPresent(), deviceTask => request.Types.Contains(deviceTask.Type))
                 .WhereIF(request.Brand.IsPresent(), (deviceTask, device, deviceTemplate) => deviceTemplate.Brand == request.Brand)
                 .Where((deviceTask, device, deviceTemplate, ga, gaLeave, department, gainfoEx, deviceRegistry) =>