1, principle of equality. Compulsory education is a basic education that everyone must receive through legislation. The state should create conditions to equally meet the "basic learning needs" of every school-age child from different regions, different families, different nationalities and different sexes, and meet the basic quality standards set by the state. This is the first principle to promote the balanced development of compulsory education, and it is also the bottom line principle for the state to overcome the uneven development of various compulsory education from the system or policy level. If a country's government fails to follow such a bottom line principle, or breaks such a bottom line principle, by its nature, it will undermine the balanced development of compulsory education, and as a result, it will harm the personal interests of children and the interests of the whole country and nation. The principle of equality mainly includes equal access to school, equal distribution of public education resources and equal quality of education, which is the basic condition to ensure the equality of the education process and educational results of the educated and the basic path to truly overcome the imbalance in the development of compulsory education.