Abstract: The National Undergraduate Electronic Design Contest(NUEDC)power class previous competition title is a high-quality comprehensive practical teaching resources.In this article,by analyzing the characteristics and development trends of power supply competition topics,the professional skills and knowledge points required for power supply competitions are summarized.The knowledge points and professional skills involved are interspersed into the undergraduate practice teaching.The organization training system and implementation management mechanism for the power supply competition of the national college students' electronic design competition are constructed,which can effectively promote the comprehensive experimental teaching reform of the electrical engineering profession.