// this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged); //上面一行是主窗体InitializeComponent()方法中需要添加的引用 private void Form1_SizeChanged(object sender, EventArgs e) { if (this.WindowState==FormWindowState.Minimized) { this.Hide(); this.notifyIcon1.Visible=true; } } .添加点击图标事件(首先需要添加事件引用)： private void notifyIcon1_Click(object sender, EventArgs e) { this.Visible = true; this.WindowState = FormWindowState.Normal; this.notifyIcon1.Visible = false; } .可以给notifyIcon添加右键菜单： 主窗体中拖入一个ContextMenu控件contextMenu1，点中控件，在上下文菜单中添加菜单，notifyIcon1的ContextMenu行为中选中contextMenu1作为上下文菜单。 (可以在子菜单中添加行为)