Let students do what they can; Let students take care of what they can; Let students do what they can. "Three-self education" refers to the activities of "self-management", "self-education" and "self-service" among students. Through activities, students' good sense of etiquette, discipline, labor and team spirit can be cultivated, so as to achieve the goal of students' self-discipline, gradually improve their comprehensive quality and practical ability, and form a good school spirit and a healthy and upward campus cultural atmosphere.