Abstract: Undergraduate graduation design is an important part of improving the ability of undergraduate students to innovate and practice. From the perspective of the instructor,this article makes an exploratory study on how to reasonably achieve innovation and practical ability improvement. The study divided the graduation design process into twelve stages. Through setting basic goals,ex-tending the objectives,and modifying the various process elements which submitted to the graduation design,the four types of gradua-tion design topics were compared and analyzed. The analysis and optimization of the design process not only can achieve better under-graduate graduation design effects,stimulate students' innovation,but also enhance the practical awareness of undergraduate stu-dents' book knowledge and engineering.