The foundation of primary education refers to the comprehensive quality education for young children, laying the foundation for their future development as qualified citizens. Therefore, primary education lays the foundation for improving national quality; Primary education is not a vocational education, nor is it a professional education to train senior professionals. It is an education of general basic knowledge and basic skills for all children. On this basis, develop their abilities, cultivate noble ideological and moral qualities, and make them have the basic qualities that citizens should have. Primary education has laid a foundation for training talents at all levels; Primary education is a basic education, which lays a comprehensive foundation for the growth of talents. Primary education is the key period of children's life development and the foundation of human life development.

(2) Popularization of primary education Primary education is compulsory and is for all school-age children. China's Compulsory Education Law stipulates that all children who have reached the age of six, regardless of gender, nationality or race, should receive compulsory education for a specified number of years. The compulsory nature of primary education determines that it is a right that every citizen should enjoy, and also determines the universality of primary education. The popularization of primary education is also the common trend of educational reform in all countries of the world.

(3) the comprehensiveness of primary education

Primary education should be all-round, with all-round development in morality, intelligence and physique, not for one aspect. China's Compulsory Education Law stipulates that compulsory education must enable children and adolescents to develop in an all-round way in morality, intelligence and physique. The comprehensiveness of primary education is exactly what the Compulsory Education Law requires.