According to the propaganda of Jining Senior Vocational School, it is not a closed school. Closed school usually means that students are boarding at school and can't go out at will. Students' daily life and study are completed at school. But Jining Senior Vocational School is a school that provides vocational education and training for students. Students don't need to live on campus, they can freely enter and leave the campus, and they have greater autonomy and freedom of study. Students can flexibly arrange their time and actions according to their own schedules and needs, and keep in touch with the outside world. Therefore, Jining Senior Vocational School is not a closed school.