The characteristics of compulsory education are compulsory, free and basic. The national compulsion of compulsory education is the most essential feature of compulsory education. Refers to the compulsory education guaranteed by the state compulsory force in accordance with the law. Compulsory education is not only the right of the educated, but also the obligation of the state. The state should guarantee the right of school-age children to receive compulsory education according to law, which is the embodiment of the will of the state. The free nature of compulsory education means that the state exempts all or most of the tuition fees for students who receive compulsory education. This is a common feature of compulsory education in all countries of the world. Of course, starting from the actual situation of various countries and regions, compulsory education has a gradual development process from partial exemption to full exemption.