Computer allocation means that if students do not participate in the school selection or the school selection is unsuccessful, the Education Committee will make corresponding computer allocation by default according to their school situation. Schools are randomly assigned by computers according to personal wishes and objective conditions (mainly address and household registration).

Computer ranking is to send students to neighboring schools by computer to solve the problem of large number of students. Computer allocation (also called lottery) is a way of selecting numbers by computer when the number of applicants exceeds the number of students that can be enrolled. Not only the leaders of kindergartens and schools, but also the leaders of the supervision department of the Education Bureau and parents' representatives participated in the computer allocation work. Therefore, this is a more open, just and fair way.

Computer allocation originated from 199 1 year and was designed by Chen, former deputy director of Guangzhou Admissions Office. The original intention is to solve the problem of fair admission of students. Beijing introduced computer allocation on 1998.

After the implementation of computer allocation, due to the gap in school teaching quality, some parents tried their best to move their children's hukou to the area where a good school is located, and some even paid a lot of school selection fees. In order to reduce expenses, parents do not hesitate to mobilize various social relationships to help their children enter good schools.