Yancheng Affiliated School of Beijing Normal University is a state-owned private school jointly organized by Beijing Normal University and Yancheng Economic and Technological Development Zone, which integrates kindergarten, primary school, junior high school and senior high school. According to the survey, the mature teachers in Yancheng Affiliated School of Beijing Normal University have a high resignation rate, and the school has a strong work intensity, sometimes working overtime for one or two classes. Moreover, due to the lack of humanization in school management, teachers' salaries are deducted, and the school can't keep mature teachers. The main composition of school teachers is also newly graduated college students.