National defense education is a social activity to defend national sovereignty, territorial integrity and security, resist the construction and struggle of foreign aggression and subversive threats, and impart ideas, knowledge and skills related to national defense to the whole people. The important content of national defense construction includes all kinds of social activities to enhance the national defense thought, knowledge, skills and physical quality of the whole people and help form and improve the national defense concept and ability.

National defense education is a basic education for all citizens, involving all aspects, rich in content and wide in scope. The integrity of national defense construction determines the content of national defense education. Modern national defense not only refers to the construction of troops, weapons and equipment, battlefields and strategic locations, but also is closely related to the country's economic strength, political situation, national psychology, educational level and population quality. National defense education is a universal education activity with specific purposes and contents for all citizens in order to guard against and resist aggression, stop armed subversion and defend national sovereignty, unity and territorial integrity. National defense education is an important part of national defense construction, which is attached to primary schools, middle schools and universities.