National defense education is a process of cultivating all citizens' national defense concepts, national awareness and national security awareness through education and publicity. Its core goal is to improve citizens' sense of national responsibility and participation, enhance national security awareness and ensure national security and development. National defense education is the basis of national defense education, which means that all citizens, regardless of age, gender, occupation and other backgrounds, should receive national defense education. By popularizing national defense knowledge, strengthening national security education, improving citizens' national identity and national defense ability, and improving the overall quality of the people. Only when all the people have national defense awareness and knowledge can we jointly safeguard national security and development and build an indestructible national defense line.