diff --git a/UI/ParamDrawingPanel.cs b/UI/ParamDrawingPanel.cs
index e9bb712..324fb00 100644
--- a/UI/ParamDrawingPanel.cs
+++ b/UI/ParamDrawingPanel.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Drawing;
 using System.Globalization;
+using System.IO;
 using System.Linq;
 using System.Windows.Forms;
 using Autodesk.AutoCAD.ApplicationServices;
@@ -25,6 +26,9 @@ namespace CadParamPluging.UI
         private TextBox _txtLog;
         private TextBox _txtTemplatePath;
 
+        private string _selectedFolderPath;
+        private string[] _cadFilePaths = new string[0];
+
         private TemplateInfo _selectedTemplate;
         private Extents3d? _selectedModelWindow;
         private string _selectedSheetName;
@@ -95,7 +99,7 @@ namespace CadParamPluging.UI
             grid.Controls.Add(new Label { Text = "特殊条件", AutoSize = true, TextAlign = ContentAlignment.MiddleLeft }, 0, 3);
             grid.Controls.Add(_cbScale, 1, 3);
 
-            var btnSelect = new Button { Text = "选择模板", AutoSize = true };
+            var btnSelect = new Button { Text = "选择路径", AutoSize = true };
             btnSelect.Click += (_, __) => OnSelectTemplate();
             
             _txtTemplatePath = new TextBox { Width = 160, ReadOnly = true };
@@ -364,38 +368,67 @@ namespace CadParamPluging.UI
         {
             try
             {
-                using (var dialog = new OpenFileDialog())
+                using (var dialog = new FolderBrowserDialog())
                 {
-                    dialog.Filter = "CAD 模板文件 (*.dwt;*.dwg)|*.dwt;*.dwg|所有文件 (*.*)|*.*";
-                    dialog.Title = "选择模板文件";
-                    if (dialog.ShowDialog() == DialogResult.OK)
+                    dialog.Description = "选择包含 CAD 文件的文件夹";
+
+                    if (!string.IsNullOrWhiteSpace(_selectedFolderPath) && Directory.Exists(_selectedFolderPath))
                     {
-                        var filePath = dialog.FileName;
-                        var fileName = System.IO.Path.GetFileNameWithoutExtension(filePath);
-                        
-                        _selectedTemplate = new TemplateInfo
+                        dialog.SelectedPath = _selectedFolderPath;
+                    }
+
+                    if (dialog.ShowDialog(this) == DialogResult.OK)
+                    {
+                        var folderPath = dialog.SelectedPath;
+                        if (string.IsNullOrWhiteSpace(folderPath) || !Directory.Exists(folderPath))
                         {
-                            Name = fileName,
-                            FilePath = filePath,
-                            Description = "手动选择"
-                        };
-                        
-                        _txtTemplatePath.Text = filePath;
+                            AppendLog("选择路径无效。");
+                            return;
+                        }
 
-                        _lblTemplateInfo.Text = filePath;
-                        AppendLog($"手动选择模板: {filePath}");
+                        _selectedFolderPath = folderPath;
+                        _txtTemplatePath.Text = folderPath;
 
-                        TryReplaceDropdownOptionsFromTemplate(filePath);
+                        _cadFilePaths = LoadCadFilesFromFolder(folderPath);
+
+                        AppendLog($"已选择路径: {folderPath}");
+                        AppendLog($"检测到 CAD 文件数量: {_cadFilePaths.Length}");
+
+                        foreach (var p in _cadFilePaths.Take(10))
+                        {
+                            AppendLog($"- {Path.GetFileName(p)}");
+                        }
+
+                        if (_cadFilePaths.Length > 10)
+                        {
+                            AppendLog($"... 还有 {_cadFilePaths.Length - 10} 个文件");
+                        }
                     }
                 }
             }
             catch (Exception ex)
             {
-                AppendLog($"选择模板失败: {ex.Message}");
-                Logger.Error("SelectTemplate", ex);
+                AppendLog($"选择路径失败: {ex.Message}");
+                Logger.Error("SelectCadFolder", ex);
             }
         }
 
+        private static string[] LoadCadFilesFromFolder(string folderPath)
+        {
+            if (string.IsNullOrWhiteSpace(folderPath) || !Directory.Exists(folderPath))
+            {
+                return new string[0];
+            }
+
+            var patterns = new[] { "*.dwg", "*.dwt", "*.dxf" };
+
+            return patterns
+                .SelectMany(p => Directory.EnumerateFiles(folderPath, p, SearchOption.TopDirectoryOnly))
+                .Distinct(StringComparer.OrdinalIgnoreCase)
+                .OrderBy(p => p, StringComparer.OrdinalIgnoreCase)
+                .ToArray();
+        }
+
         private void TryReplaceDropdownOptionsFromTemplate(string templatePath)
         {
             try