diff --git a/workspace_monitor.py b/workspace_monitor.py
index da21a80..2b6cf85 100644
--- a/workspace_monitor.py
+++ b/workspace_monitor.py
@@ -307,6 +307,13 @@ try:
                 self.start_stop_btn.setStyleSheet("background-color: #4CAF50;")
                 self.status_label.setText("状态: 已停止监控")
                 self.timer.stop()
+                # 重置计时相关的变量
+                self.last_face_time = time.time()
+                self.no_face_duration = 0
+                self.progress_bar.setValue(0)
+                self.progress_bar.setFormat("离开时间: 0s")
+                self.set_progress_bar_style("#4CAF50")  # 重置进度条颜色为绿色
+                self.confidence_label.setText("置信度: 0%")
                 self.tray_icon.showMessage("工位监控", "监控已停止", QSystemTrayIcon.MessageIcon.Information)
                 
         def update_timeout(self, value):