After graduating from high school, the student status file will play a role: after high school students are admitted to the university, university teachers can learn about the development of each student in high school in many aspects, such as morality, intelligence and physical education, by consulting the student files. To be clear, university teachers can look up a student's achievements and ideological growth and changes in the past three years. But in practical work, as long as students have no special reasons, teachers rarely have the opportunity to check students' high school files. In addition, after waiting to enter the university, teachers will re-establish new university files for students. After graduation, high school files are basically useless. But it will generally be handed over to the employer together with the college students' files.