Abstract: Practical teaching is a promising way to cultivate students’ engineering ability. Under the background of new engineering and engineering education accreditation, the optimization and improvement of practical teaching system has become the key and difficult point of teaching reform. Nanjing University of Posts and Telecommunications, famous for its distinctive features of electronic information, has a multitude of electronic information majors that have passed accreditation and selected as the first batch of first-class majors. Guided by modern engineering education philosophy, this paper combines the accreditation of engineering education and the construction of “Double First Class” to implement teaching reform and practice of teaching links such as in-class experiment, comprehensive practice, innovative training and graduation design from the perspectives of teaching content, teaching method and management model. The results show that the practice teaching reform greatly increases the role of practical teaching in cultivating students’ engineering ability, thus achieving good effects.