As the first stage of the development of comparative education, the reference era is marked by Julian's "Outline and Preliminary Opinions on Comparative Education" published in Paris on 18 17.

The era of factor analysis began with a paper published by Saddler, a British comparative educationist (1861~1943), "What valuable things can we learn from the study of educational systems in other countries? "As a symbol.

From 1950s to now, it is the third stage of comparative education research, which is a stage of vigorous development of disciplines, and its methodological feature is comprehensive research, also known as "the era of social science methods". In the era of social science method, comparative education has made great progress in the world, which is mainly manifested in the rapid expansion of research scale, the emergence of research methods, the emergence of a large number of research results and the expansion of research fields.