The completion of closed loop now widely refers to that the educational system and process have reached a complete and circular state, which can achieve educational goals and meet students' learning needs. Specifically, the closed-loop education at the moment means that teachers impart knowledge and skills to students through teaching activities, and students master these knowledge and skills through study and practice, and then apply them to real life and work. The significance of closed loop is to ensure the effectiveness and sustainability of education and let students make continuous progress and development. At the same time, the closed loop also means that the education process is not isolated, but closely combined with society and practice, which can meet the needs of social development. Generally speaking, the closed loop of education at this time means that the objectives, contents and methods of education have been effectively implemented and applied, which has promoted the all-round development of students and social progress.