diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
index e204270..04abb21 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
@@ -22,6 +22,9 @@ namespace JoyD.Windows.CS
         // 绘制模式标志
         private bool _isDrawingMode = false;
         
+        // 温差图绘制模式标志
+        private bool _isTempDiffDrawingMode = false;
+        
         // 矩形绘制相关变量
         private Point _startPoint;
         private Rectangle _currentRectangle = Rectangle.Empty;
@@ -78,8 +81,14 @@ namespace JoyD.Windows.CS
         /// </summary>
         private void PicBoxTemp_MouseDown(object sender, MouseEventArgs e)
         {
+            // 检查是否处于温差图绘制状态且右击鼠标
+            if (_isTempDiffDrawingMode && e.Button == MouseButtons.Right)
+            {
+                // 退出温差图绘制状态，返回到就绪状态
+                ExitTempDiffDrawingMode();
+            }
             // 检查是否处于绘制状态且右击鼠标
-            if (_isDrawingMode && e.Button == MouseButtons.Right)
+            else if (_isDrawingMode && e.Button == MouseButtons.Right)
             {
                 // 退出绘制状态
                 _isDrawingMode = false;
@@ -140,7 +149,7 @@ namespace JoyD.Windows.CS
         /// <summary>
         /// 根据状态设置按钮可见性
         /// </summary>
-        /// <param name="state">状态类型：0-初始/就绪状态，1-选中区域状态，2-绘制状态</param>
+        /// <param name="state">状态类型：0-初始/就绪状态，1-选中区域状态，2-绘制状态，3-温差图绘制状态</param>
         private void UpdateButtonsVisibility(int state)
         {
             try
@@ -165,6 +174,12 @@ namespace JoyD.Windows.CS
                         btnDeleteRegion.Visible = false; // 隐藏删除区域按钮
                         btnDrawTempDiff.Visible = false; // 隐藏温差图按钮
                         break;
+                    case 3: // 温差图绘制状态
+                        btnDrawTempDiff.Visible = true;  // 显示温差图按钮
+                        btnDrawRegion.Visible = false;   // 隐藏绘制区域按钮
+                        btnSelectColor.Visible = false;  // 隐藏颜色选择按钮
+                        btnDeleteRegion.Visible = false; // 隐藏删除区域按钮
+                        break;
                 }
             }
             catch (Exception ex)
@@ -178,8 +193,53 @@ namespace JoyD.Windows.CS
         /// </summary>
         private void BtnDrawTempDiff_Click(object sender, EventArgs e)
         {
-            // 温差图绘制功能实现
-            // TODO: 实现温差图绘制逻辑
+            try
+            {
+                // 设置温差图绘制模式标志
+                _isTempDiffDrawingMode = !_isTempDiffDrawingMode;
+                btnDrawTempDiff.Checked = _isTempDiffDrawingMode;
+                
+                if (_isTempDiffDrawingMode)
+                {
+                    // 进入温差图绘制状态
+                    picBoxTemp.Cursor = Cursors.Cross;
+                    btnDrawTempDiff.ToolTipText = "温差图绘制模式已启用，点击图片区域进行绘制(点击关闭)";
+                    
+                    // 调用按钮可见性更新方法设置为温差图绘制状态
+                    UpdateButtonsVisibility(3); // 3表示温差图绘制状态
+                }
+                else
+                {
+                    // 退出温差图绘制状态，返回到就绪状态
+                    ExitTempDiffDrawingMode();
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("温差图绘制模式切换失败: " + ex.Message);
+                ExitTempDiffDrawingMode();
+            }
+        }
+        
+        /// <summary>
+        /// 退出温差图绘制模式
+        /// </summary>
+        private void ExitTempDiffDrawingMode()
+        {
+            _isTempDiffDrawingMode = false;
+            btnDrawTempDiff.Checked = false;
+            
+            // 重置鼠标光标
+            picBoxTemp.Cursor = Cursors.Default;
+            
+            // 更新按钮提示文本
+            btnDrawTempDiff.ToolTipText = "绘制温差图";
+            
+            // 按就绪状态设置按钮可见性
+            UpdateButtonsVisibility(0); // 0表示初始状态/就绪状态
+            
+            // 刷新绘制
+            picBoxTemp.Invalidate();
         }
 
         /// <summary>