diff --git a/XplorePlane/ViewModels/Main/MainViewModel.cs b/XplorePlane/ViewModels/Main/MainViewModel.cs
index 945c18d..da32e71 100644
--- a/XplorePlane/ViewModels/Main/MainViewModel.cs
+++ b/XplorePlane/ViewModels/Main/MainViewModel.cs
@@ -142,9 +142,13 @@ namespace XplorePlane.ViewModels
 
                 _mainViewportService.SetRealtimeDisplayEnabled(value);
                 RaisePropertyChanged();
+                RaisePropertyChanged(nameof(IsMeasurementToolsEnabled));
             }
         }
 
+        /// <summary>测量工具是否可用（实时模式关闭时启用）</summary>
+        public bool IsMeasurementToolsEnabled => !IsMainViewportRealtimeEnabled;
+
         public bool IsUsingLiveDetectorSource => _mainViewportService.CurrentSourceMode == MainViewportSourceMode.LiveDetector;
 
         public string DataRootPath
diff --git a/XplorePlane/Views/Main/MainWindow.xaml b/XplorePlane/Views/Main/MainWindow.xaml
index 6cc5237..a93957b 100644
--- a/XplorePlane/Views/Main/MainWindow.xaml
+++ b/XplorePlane/Views/Main/MainWindow.xaml
@@ -213,6 +213,7 @@
                             telerik:ScreenTip.Description="测量两点之间的距离"
                             telerik:ScreenTip.Title="点点距测量"
                             Command="{Binding PointDistanceMeasureCommand}"
+                            IsEnabled="{Binding IsMeasurementToolsEnabled}"
                             Size="Medium"
                             SmallImage="/Assets/Icons/ptop.png"
                             Text="点点距测量" />
@@ -220,6 +221,7 @@
                             telerik:ScreenTip.Description="测量点到直线的距离"
                             telerik:ScreenTip.Title="点线距测量"
                             Command="{Binding PointLineDistanceMeasureCommand}"
+                            IsEnabled="{Binding IsMeasurementToolsEnabled}"
                             Size="Medium"
                             SmallImage="/Assets/Icons/ptol.png"
                             Text="点线距测量" />
@@ -231,6 +233,7 @@
                             telerik:ScreenTip.Description="测量两条线之间的角度"
                             telerik:ScreenTip.Title="角度测量"
                             Command="{Binding AngleMeasureCommand}"
+                            IsEnabled="{Binding IsMeasurementToolsEnabled}"
                             Size="Medium"
                             SmallImage="/Assets/Icons/angle.png"
                             Text="角度测量" />
@@ -238,6 +241,7 @@
                             telerik:ScreenTip.Description="测量通孔填锡率"
                             telerik:ScreenTip.Title="通孔填锡率测量"
                             Command="{Binding ThroughHoleFillRateMeasureCommand}"
+                            IsEnabled="{Binding IsMeasurementToolsEnabled}"
                             Size="Medium"
                             SmallImage="/Assets/Icons/cylinder.png"
                             Text="通孔填锡率" />
@@ -249,6 +253,7 @@
                             telerik:ScreenTip.Description="手动气泡测量（魔棒+画笔）"
                             telerik:ScreenTip.Title="气泡测量"
                             Command="{Binding BubbleMeasureCommand}"
+                            IsEnabled="{Binding IsMeasurementToolsEnabled}"
                             Size="Medium"
                             SmallImage="/Assets/Icons/pores.png"
                             Text="气泡测量" />