diff --git a/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs b/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs
index 6b1cae24..ebd03673 100644
--- a/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs
+++ b/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs
@@ -400,7 +400,7 @@ public class DevicePermissionService : IDevicePermissionService
                     var tenantId = arr.First();
                     var currentDepartmentNo = arr.Last();
                     var departmentNos = new List<string> { currentDepartmentNo };
-                    DepartmentRecursionGetPNo(currentDepartmentNo, departments, departmentNos);
+                    DepartmentRecursionGetNext(currentDepartmentNo, departments, departmentNos);
 
                     ids.AddRange(await _dbContext.Queryable<GainfoEntity>().Where(x => x.Factory == tenantId && departmentNos.Contains(x.DepartmentNo)).Select(x => x.Id).ToListAsync());
                 }
@@ -459,13 +459,13 @@ public class DevicePermissionService : IDevicePermissionService
 
         return page;
 
-        void DepartmentRecursionGetPNo(string current, List<DepartmentEntity> data, List<string> result)
+        void DepartmentRecursionGetNext(string current, List<DepartmentEntity> data, List<string> result)
         {
-            var p = data.FirstOrDefault(x => x.No == current)?.PNo;
-            if (p.IsPresent())
+            var next = data.Where(x => x.PNo == current);
+            foreach (var item in next)
             {
-                result.Add(p);
-                DepartmentRecursionGetPNo(p, data, result);
+                result.Add(item.No);
+                DepartmentRecursionGetNext(item.No, data, result);
             }
         }
     }