The education system of primary school, junior high school and senior high school. Twelve-year compulsory education refers to the education system of primary school, junior high school and senior high school (technical secondary school, vocational high school and technical school). At this stage, school-age children and adolescents must receive national education guaranteed by the state, society and family. It should be noted that 12-year compulsory education does not mean unconditional admission to ordinary high schools, and there is no limit on scores. The requirement is that all schools still need to take the senior high school entrance examination or the entrance examination of some secondary vocational education institutions.