介绍了一种时钟棒电路的设计。该电路采用ATMEL公司的AT89C2051单片机作为主控芯片，配合使用七个高亮度蓝色LED灯和两个按钮开关，并采用4节普通AA电池作为供电能源。该时钟棒设计简单、成本低廉、功能全面。该设计可以实现显示时钟、显示作者姓名、闹钟报时等功能。该设计采用KEIL公司的编译软件KEILC51编写程序，配合PROTUES ISIS 7.2进行软件仿真分析，使用Altium designer 6完成印刷电路板的设计。-This paper presents a clock bar circuit design. The circuit uses ATMEL Corporation AT89C2051 MCU as the master chip, used in conjunction with seven high-brightness blue LED lights and two buttons, switches, and uses four ordinary AA batteries as a power supply of energy. The clock bar designed to be simple, low cost, full-featured. The design can be achieved display clock, display author' s name, alarm clock timekeeping functions. The design uses KEIL compiler software KEILC51 the company' s programming to meet the PROTUES ISIS 7.2 for software simulation and analysis, use Altium designer 6 to complete the printed circuit board design.