At the beginning of the emergence of the concept of new engineering, its connotation interpretation and paradigm change theme have become the focus of attention. The new engineering should not only pay attention to the construction of new industries and new specialties under the new technology, but also pay attention to the continuous training effect of talents under the new engineering education. Discipline competition is an effective way to cultivate the innovation and entrepreneurship ability of college students and improve their comprehensive quality. In order to promote the sustainable and good construction of new engineering education in Colleges and universities, this paper uses PDCA cycle as a means to integrate multi-disciplinary technology through discipline competition, promote the ability of college students to solve complex engineering problems, and thus improve the teaching quality of new engineering. Practice has proved that PDCA is applied to discipline competition in a circular way, providing a feasible path for the implementation of new engineering. After three years of tracking assessment on three different classes of computer science, the graduation design score has been raised from about 82 points to about 85 points, and the students’ theoretical level, practical ability, innovation ability and discipline competition design level have been significantly improved.