Cultural diversity refers to the manifold ways in which the cultures of groups and societies find expression. Immigrant groups,indigenous groups and ethnic minority groups are important sources of cultural diversity within a country. Cultural diversity creates a rich and varied world,which is indispensable for individual growth,regional and national development,international peace,the sustainable develop-ment of the humankind. Modern school education not only has the functions of promoting individual development,saving and transmitting culture,but also has the function of national integration. It is very important but not the only institutions to protect and promote cultural diversity. Different from the western historical background of multiculturalism,cultural diversity education in China has a unique development path and problems. In the era of "post-multiculturalism",academia and the governments should breakthrough the limitation of methodological nationalism,further improve the education system of cultural diversity from personal,local,ethnic,national,and global perspectives.