Electronic Design Automation (EDA) technology represents the development direction of modern electronic design technology. This paper presents the traditional digital circuit design method, carefully introduces a top-down hierarchy design method, analyzes advantages and disadvantages of traditional experimental teaching, and proposes the application of EDA experimentation in digital circuit design. It is comprised of hardware and software. Numerical Control Frequency divider is taken as a typical example to display EDA experimental applications. An EDA experimental system based on FPGA/CPLD can achieve automated design of digital circuit quickly and easily, and thus it provides a good platform for the logic design and development of medium and large-scale digital circuit.