Instructors in column schools usually go to the school to get a discharge certificate or a military officer's card. The specific certificate is decided by the school itself.

The instructors in the school are mainly veterans with excellent military quality. They assist the school in dormitory management, dining order in restaurants, students' morning exercises, flag class training between classes, campus civilization, the formation of student self-discipline committees, the order and security of various large-scale activities in schools, etc. So as to cultivate students' good character of self-discipline, self-reliance, self-discipline and hard work.