使用EDA(电子设计自动化 )技术设计电子电路已经成为时代潮流 ,EWBEDA软件是目前各种电子电路辅助分析与设计软件中最优秀的软件之一 ,该软件具有模拟和数字电路的设计、分析、仿真能力。本文介绍了一种基于EWB(电子工作台 )软件设计数字电路的新方法 ,它改变了传统的设计方法 ,通过设计数字电子钟 ,说明了该软件是人们设计电子电路的有效工具 Using EDA (Electronic Design Automation) technology to design electronic circuits has become the trend of the times. EWBEDA software is one of the best softwares in various electronic circuit auxiliary analysis and design softwares. The software has the functions of designing, analyzing and simulating analog and digital circuits ability. This paper presents a new method of designing digital circuits based on EWB (Electronic Workbench) software, which changes the traditional design method. By designing digital electronic clocks, it shows that the software is an effective tool for people to design electronic circuits