Abstract: The concept of modern engineering education emphasizes “learning by doing”,its core idea is based on engineering practice project throughout the whole process of teaching,to achieve the effect of “learning by doing”.According to the concept of training creative students who could apply the theoretical knowledge which they have learned to the actual objects,this paper puts forward a practical teaching method of “restructuring” electronic products based on CDIO concept.Through an example of resructuring a swithing power supply,one shows the whole process of the implementation of the teaching methods.