diff --git a/src/SJZY.Track.Application.Contract/Dtos/ProvideServices/FileItemDto.cs b/src/SJZY.Track.Application.Contract/Dtos/ProvideServices/FileItemDto.cs
new file mode 100644
index 00000000..f483a7ab
--- /dev/null
+++ b/src/SJZY.Track.Application.Contract/Dtos/ProvideServices/FileItemDto.cs
@@ -0,0 +1,14 @@
+namespace SJZY.Track.Application.Contract.Dtos.ProvideServices;
+
+public class FileItemDto
+{
+    /// <summary>
+    /// 文件osskey
+    /// </summary>
+    public string OssKey { get; set; }
+
+    /// <summary>
+    /// 文件名称
+    /// </summary>
+    public string FileName { get; set; }
+}
diff --git a/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/FileItem.cs b/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/FileItem.cs
new file mode 100644
index 00000000..2d2dc4a3
--- /dev/null
+++ b/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/FileItem.cs
@@ -0,0 +1,14 @@
+namespace SJZY.Track.Domain.Aggregates.TrackDetailsAggregate;
+
+public class FileItem
+{
+    /// <summary>
+    /// 文件osskey
+    /// </summary>
+    public string OssKey { get; set; }
+
+    /// <summary>
+    /// 文件名称
+    /// </summary>
+    public string FileName { get; set; }
+}
diff --git a/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/TrackDetailsIndex.cs b/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/TrackDetailsIndex.cs
index 60e0c808..99ea5e25 100644
--- a/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/TrackDetailsIndex.cs
+++ b/src/SJZY.Track.Domain/Aggregates/TrackDetailsAggregate/TrackDetailsIndex.cs
@@ -123,9 +123,9 @@ public class TrackDetailsIndex : IdBaseIndex
     public string? Remarks { get; set; } = GlobalConst.EmptyString;
 
     /// <summary>
-    /// 附件key，多个附件使用（,）分割
+    /// 附件集合
     /// </summary>
-    public string? Files { get; set; } = GlobalConst.EmptyString;
+    public List<FileItem>? Files { get; set; }
 
     /// <summary>
     /// 轨迹发生地（城市）