Graduation design is an important bridge between teaching and practice. It is also a key content of undergraduate teaching. The paper discussed the existing problems in the current graduation design, including topic selection, process management and assessment mechanism, and then proposed it must be strengthen the college attention, enhance the teacher’s responsibility and improve the students communication ability， finally exhibited a three-in-one design idea and management system constructed by college, teacher and student, which is present a reference to enhance the graduation design quality.