diff --git a/src/UI/WPF/Views/CollisionAnalysisDialog.xaml b/src/UI/WPF/Views/CollisionAnalysisDialog.xaml
index 5e2679b..040e4e9 100644
--- a/src/UI/WPF/Views/CollisionAnalysisDialog.xaml
+++ b/src/UI/WPF/Views/CollisionAnalysisDialog.xaml
@@ -199,8 +199,11 @@
 
         <!-- 按钮 -->
         <StackPanel Grid.Row="5" Orientation="Horizontal" HorizontalAlignment="Right">
-            <Button Content="继续生成动画" 
+            <Button x:Name="ActionButton"
+                    Content="重新生成动画" 
                     Width="120" 
+                    IsEnabled="False"
+                    ToolTip="将选中的物体加入排除列表并重新生成动画（排除后重新检测）"
                     Click="ActionButton_Click"
                     Style="{StaticResource ActionButtonStyle}"/>
             <Button Content="取消" 
diff --git a/src/UI/WPF/Views/CollisionAnalysisDialog.xaml.cs b/src/UI/WPF/Views/CollisionAnalysisDialog.xaml.cs
index d1fd34f..36fa5a0 100644
--- a/src/UI/WPF/Views/CollisionAnalysisDialog.xaml.cs
+++ b/src/UI/WPF/Views/CollisionAnalysisDialog.xaml.cs
@@ -60,13 +60,37 @@ namespace NavisworksTransport.UI.WPF.Views
             
             _viewModels = viewModels;
             
+            // 🔥 勾选状态驱动“重新生成动画”按钮启用（有任一选中才可执行）
+            foreach (var vm in viewModels)
+            {
+                vm.PropertyChanged += (s, e) =>
+                {
+                    if (e.PropertyName == nameof(HotspotViewModel.IsExcluded))
+                    {
+                        UpdateActionButtonState();
+                    }
+                };
+            }
+            
             // 记录自动选中结果
             int autoSelectedCount = viewModels.Count(vm => vm.IsExcluded);
             LogManager.Info($"[碰撞分析] 自动选中 {autoSelectedCount}/{viewModels.Count} 个高频碰撞物体（>100次或>50%）");
         }
 
+        private void UpdateActionButtonState()
+        {
+            if (ActionButton != null)
+            {
+                bool hasExcluded = _viewModels?.Any(vm => vm.IsExcluded) ?? false;
+                ActionButton.IsEnabled = hasExcluded;
+            }
+        }
+
         private void CollisionAnalysisDialog_Loaded(object sender, RoutedEventArgs e)
         {
+            // 初始预选状态驱动按钮（有自动选中的排除对象 → 激活重新生成动画）
+            UpdateActionButtonState();
+
             if (!TestAutomationHttpService.ShouldAutoConfirmCollisionAnalysisDialogs &&
                 !AutomationModeContext.IsAutomaticMode)
             {
@@ -185,8 +209,9 @@ namespace NavisworksTransport.UI.WPF.Views
             }
             else
             {
-                SelectedAction = CollisionAnalysisAction.Continue;
-                LogManager.Info("[碰撞分析] 用户选择直接继续生成（无排除对象）");
+                // 🔥 防御：无选中排除时（按钮通常已禁用）——等同取消，不做任何业务操作
+                SelectedAction = CollisionAnalysisAction.Cancel;
+                LogManager.Info("[碰撞分析] 无排除对象选中，等同取消");
             }
             
             Close();