diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index c0f10d6f..0de759c9 100644
Binary files a/Bin/net40/SunnyUI.Demo.exe and b/Bin/net40/SunnyUI.Demo.exe differ
diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index fa1171f7..27de98d2 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net462/SunnyUI.dll b/Bin/net462/SunnyUI.dll
index 0e52e555..761daf19 100644
Binary files a/Bin/net462/SunnyUI.dll and b/Bin/net462/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index 8f1c142b..44940a26 100644
Binary files a/Bin/net5.0-windows/SunnyUI.dll and b/Bin/net5.0-windows/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/ref/SunnyUI.dll b/Bin/net5.0-windows/ref/SunnyUI.dll
index f3c754f3..29b4d915 100644
Binary files a/Bin/net5.0-windows/ref/SunnyUI.dll and b/Bin/net5.0-windows/ref/SunnyUI.dll differ
diff --git a/Bin/netcoreapp3.1/SunnyUI.dll b/Bin/netcoreapp3.1/SunnyUI.dll
index 2547d2ef..523e94cd 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI.Demo/Charts/FLineChart.Designer.cs b/SunnyUI.Demo/Charts/FLineChart.Designer.cs
index 0fd5304b..d954ed63 100644
--- a/SunnyUI.Demo/Charts/FLineChart.Designer.cs
+++ b/SunnyUI.Demo/Charts/FLineChart.Designer.cs
@@ -36,6 +36,7 @@
             this.LineChart = new Sunny.UI.UILineChart();
             this.uiSymbolButton2 = new Sunny.UI.UISymbolButton();
             this.timer1 = new System.Windows.Forms.Timer(this.components);
+            this.uiCheckBox1 = new Sunny.UI.UICheckBox();
             ((System.ComponentModel.ISupportInitialize)(this.uiImageButton3)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.uiImageButton2)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.uiImageButton1)).BeginInit();
@@ -128,11 +129,25 @@
             // 
             this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
             // 
+            // uiCheckBox1
+            // 
+            this.uiCheckBox1.Cursor = System.Windows.Forms.Cursors.Hand;
+            this.uiCheckBox1.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiCheckBox1.Location = new System.Drawing.Point(571, 505);
+            this.uiCheckBox1.MinimumSize = new System.Drawing.Size(1, 1);
+            this.uiCheckBox1.Name = "uiCheckBox1";
+            this.uiCheckBox1.Padding = new System.Windows.Forms.Padding(22, 0, 0, 0);
+            this.uiCheckBox1.Size = new System.Drawing.Size(100, 29);
+            this.uiCheckBox1.TabIndex = 37;
+            this.uiCheckBox1.Text = "显示点";
+            this.uiCheckBox1.CheckedChanged += new System.EventHandler(this.uiCheckBox1_CheckedChanged);
+            // 
             // FLineChart
             // 
             this.AllowShowTitle = true;
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
             this.ClientSize = new System.Drawing.Size(800, 574);
+            this.Controls.Add(this.uiCheckBox1);
             this.Controls.Add(this.uiSymbolButton2);
             this.Controls.Add(this.uiSymbolButton1);
             this.Controls.Add(this.uiImageButton3);
@@ -160,5 +175,6 @@
         private UILineChart LineChart;
         private UISymbolButton uiSymbolButton2;
         private System.Windows.Forms.Timer timer1;
+        private UICheckBox uiCheckBox1;
     }
 }
\ No newline at end of file
diff --git a/SunnyUI.Demo/Charts/FLineChart.cs b/SunnyUI.Demo/Charts/FLineChart.cs
index 5e893f85..c644651f 100644
--- a/SunnyUI.Demo/Charts/FLineChart.cs
+++ b/SunnyUI.Demo/Charts/FLineChart.cs
@@ -132,5 +132,17 @@ namespace Sunny.UI.Demo.Charts
 
             LineChart.Refresh();
         }
+
+        private void uiCheckBox1_CheckedChanged(object sender, EventArgs e)
+        {
+            if (LineChart.Option == null) return;
+            foreach (var series in LineChart.Option.Series.Values)
+            {
+                series.ShowLine = !uiCheckBox1.Checked;
+                series.Symbol = uiCheckBox1.Checked ? UILinePointSymbol.Circle : UILinePointSymbol.None;
+            }
+
+            LineChart.Refresh();
+        }
     }
 }
diff --git a/SunnyUI/Charts/UILineChart.cs b/SunnyUI/Charts/UILineChart.cs
index e9c5e5e9..7abab2ba 100644
--- a/SunnyUI/Charts/UILineChart.cs
+++ b/SunnyUI/Charts/UILineChart.cs
@@ -21,6 +21,7 @@
  * 2021-04-15: V3.0.3 有右键菜单时，取消恢复上次缩放，可在右键菜单增加节点，调用ZoomBack()方法
  * 2021-06-18: V3.0.4 显示鼠标点格式更新
  * 2021-07-22: V3.0.5 可自定义背景色，增加实时数据的Demo
+ * 2021-08-23: V3.0.6 增加可只显示点的模式
 ******************************************************************************/
 
 using System;
@@ -306,14 +307,17 @@ namespace Sunny.UI
                 return;
             }
 
-            using (Pen pen = new Pen(color, series.Width))
+            if (series.ShowLine || series.Symbol == UILinePointSymbol.None)
             {
-                g.SetHighQuality();
-                if (series.Smooth)
-                    g.DrawCurve(pen, series.Points.ToArray());
-                else
-                    g.DrawLines(pen, series.Points.ToArray());
-                g.SetDefaultQuality();
+                using (Pen pen = new Pen(color, series.Width))
+                {
+                    g.SetHighQuality();
+                    if (series.Smooth)
+                        g.DrawCurve(pen, series.Points.ToArray());
+                    else
+                        g.DrawLines(pen, series.Points.ToArray());
+                    g.SetDefaultQuality();
+                }
             }
         }
 
diff --git a/SunnyUI/Charts/UILineChartOption.cs b/SunnyUI/Charts/UILineChartOption.cs
index 28a65889..c55c1c9a 100644
--- a/SunnyUI/Charts/UILineChartOption.cs
+++ b/SunnyUI/Charts/UILineChartOption.cs
@@ -261,6 +261,8 @@ namespace Sunny.UI
 
         public bool Smooth { get; set; }
 
+        public bool ShowLine { get; set; } = true;
+
         public UILineSeries(string name)
         {
             Name = name;