(1) international. Comparative education should at least make a comparative study of education in more than two countries. It is transnational and has international characteristics. ② Comparability. In international education, only through comparison can we identify, and only through identification can we explore scientific conclusions that conform to objective laws as a reference for our country. ③ Comprehensive or interdisciplinary. The task of comparative pedagogy research is to concentrate the achievements of several social disciplines to study the education of various countries, which spans the scope of several disciplines. Therefore, it is necessary to have knowledge of philosophy, history, political economy and sociology, and be familiar with the research methods of these disciplines in order to make a historical and social concrete analysis and comprehensive comparison of education in various countries.