diff --git a/CADShared/Runtime/DBTrans.cs b/CADShared/Runtime/DBTrans.cs
index 38af048c03807e3c600dbdac1a6e8a73f7d3b6b8..441baeb8f08c4b80ce6b3e5338acbf7c67a4f0b5 100644
--- a/CADShared/Runtime/DBTrans.cs
+++ b/CADShared/Runtime/DBTrans.cs
@@ -250,16 +250,26 @@ public DBTrans(string fileName,
                 if (doc is null)
                 {
                     Database = new Database(false, true);
-                    if (Path.GetExtension(_fileName).ToLower().Contains("dxf"))
+                    try
                     {
-                        Database.DxfIn(_fileName, null);
+                        if (Path.GetExtension(_fileName).ToLower().Contains("dxf"))
+                        {
+                            Database.DxfIn(_fileName, null);
+                        }
+                        else
+                        {
+                            Database.ReadDwgFile(_fileName, fileOpenMode, true, password);
+                        }
                     }
-                    else
+                    catch
                     {
-                        Database.ReadDwgFile(_fileName, fileOpenMode, true, password);
+                        IsDisposed = true; // 读取出错造成未能 push, 固这里设为 true
+                        throw new ArgumentException($"文件 [{fileName}] 的格式版本可能高于当前CAD版本，读取错误！");
+                    }
+                    finally
+                    {
+                        Database.CloseInput(true);
                     }
-
-                    Database.CloseInput(true);
                 }
                 else
                 {