A pair of categories representing the relationship between population and education. There is a close restrictive relationship between population change and educational development. The population of a country is the basic factor that determines the scale of education in that country. If the population grows too fast and the investment in education can't keep up, it will affect the expansion of education scale, leading to the decline of enrollment rate and enrollment rate, and the increase of illiteracy rate; Overpopulation will also lead to a decline in the quality of education, per capita investment in education and the level of education popularization.