The secondary school attached to a university is a unit below the university, which is established in or near the university campus. It has a close relationship with universities and is an important part of universities. The teachers in secondary schools attached to universities are under the management and leadership of universities, just like the teachers in universities. They enjoy some university-related resources and benefits, and maintain contact and cooperation with universities in teaching and education. In addition, the secondary schools attached to universities will have certain connections with colleges and disciplines of universities, providing students with more educational resources and opportunities related to university disciplines.