The study of national cultural security in China rose at the turn of the century, developed rapidly in the first decade of the 21st century, and slowed down in the second decade. Three relatively complete theoretical research systems have been formed：cultural industry security——national cultural security research system, basic cultural system security——national cultural security research system and national cultural security——national cultural security research system. The research methods and emphases of the three research systems are different. By analyzing the current theoretical research situation and practical development needs, it is believed that national cultural security research should highlight the construction of a national cultural security system with Chinese characteristics, adhere to the guidance of Marxism, and further strengthen the research on specific basic theories and practical problems of national cultural security.