diff --git a/YD_YiLu.Commons/Dto/DeviceSync/DeviceSyncGradeOrderDto.cs b/YD_YiLu.Commons/Dto/DeviceSync/DeviceSyncGradeOrderDto.cs
index 2d5cf1b..39d05d7 100644
--- a/YD_YiLu.Commons/Dto/DeviceSync/DeviceSyncGradeOrderDto.cs
+++ b/YD_YiLu.Commons/Dto/DeviceSync/DeviceSyncGradeOrderDto.cs
@@ -33,6 +33,7 @@ namespace YD_YiLu.Commons.Dto.DeviceSync
         public int UserId { get; set; }
         public string Nickname { get; set; }
         public int OrganizationId { get; set; }
+        public string GradeName { get; set; }
         public string OrganizationName { get; set; }
         public int Gender { get; set; }
         public string Score { get; set; }
@@ -65,6 +66,7 @@ namespace YD_YiLu.Commons.Dto.DeviceSync
         public string UserSerial { get; set; }
         public string Nickname { get; set; }
         public int OrganizationId { get; set; }
+        public string GradeName { get; set; }
         public string OrganizationName { get; set; }
         public int Gender { get; set; }
         public string Score { get; set; }
diff --git a/YD_YiLu/Services/Impl/DeviceSyncService.cs b/YD_YiLu/Services/Impl/DeviceSyncService.cs
index 86d15f1..72886f9 100644
--- a/YD_YiLu/Services/Impl/DeviceSyncService.cs
+++ b/YD_YiLu/Services/Impl/DeviceSyncService.cs
@@ -570,8 +570,11 @@ namespace YD_YiLu.Api.Services.Impl
                 UserId = x.Key.Id,
                 Nickname = x.Key.StudentName,
                 OrganizationId = x.Key.ClassId ?? 0,
+                GradeName = classMap.TryGetValue(x.Key.ClassId ?? 0, out var gradeClassInfo)
+                    ? gradeClassInfo.GradeName ?? ""
+                    : "",
                 OrganizationName = classMap.TryGetValue(x.Key.ClassId ?? 0, out var classInfo)
-                    ? $"{classInfo.GradeName ?? ""}{classInfo.ClassName ?? ""}"
+                    ? classInfo.ClassName ?? ""
                     : x.Key.ClassName ?? "",
                 Gender = x.Key.Sex,
                 Score = Math.Round(x.Score).ToString("0"),
@@ -1125,7 +1128,7 @@ namespace YD_YiLu.Api.Services.Impl
                         new YtpGradeListItem
                         {
                             Time = GetYtpSummaryTime(dto.DateType),
-                            Duration = SecondsToWholeHours(0),
+                            Duration = SecondsToIntegerHours(0),
                             Count = "0"
                         }
                     };
@@ -1138,7 +1141,7 @@ namespace YD_YiLu.Api.Services.Impl
                     .Select(day => new YtpGradeListItem
                     {
                         Time = day.ToString("MM-dd"),
-                        Duration = SecondsToWholeHours(0),
+                        Duration = SecondsToIntegerHours(0),
                         Count = "0"
                     })
                     .ToList();
@@ -1158,7 +1161,7 @@ namespace YD_YiLu.Api.Services.Impl
                     new YtpGradeListItem
                     {
                         Time = GetYtpSummaryTime(dto.DateType),
-                        Duration = SecondsToWholeHours(totalSeconds),
+                        Duration = SecondsToIntegerHours(totalSeconds),
                         Count = trains.Count.ToString()
                     }
                 };
@@ -1176,7 +1179,7 @@ namespace YD_YiLu.Api.Services.Impl
                         return new YtpGradeListItem
                         {
                             Time = day.ToString("MM-dd"),
-                            Duration = SecondsToWholeHours(daySeconds),
+                            Duration = SecondsToIntegerHours(daySeconds),
                             Count = dayTrains.Count.ToString()
                         };
                     })
@@ -1449,6 +1452,11 @@ namespace YD_YiLu.Api.Services.Impl
             return Math.Ceiling(seconds / 3600.0).ToString("0");
         }
 
+        private static string SecondsToIntegerHours(int seconds)
+        {
+            return ((int)(seconds / 3600.0)).ToString();
+        }
+
         private static bool IsYtpSummaryDateType(int dateType)
         {
             return dateType >= 0 && dateType <= 9;