The main contents of national security education include political security, homeland security, military security, economic security, cultural security, social security, scientific and technological security, network security, ecological security, resource security, nuclear security, overseas interests security, and the ever-expanding security in new fields such as space, deep sea, polar regions and biology.

National security refers to the ability of state power, sovereignty, unity and territorial integrity, people's well-being, sustainable economic and social development and other major national interests to be relatively free from dangers and internal and external threats, and to ensure a continuous state of security.

National Security Education Day is a festival to enhance national security awareness and safeguard national security. Article 14 of the National Security Law of People's Republic of China (PRC), which was implemented on July 1 5, stipulates that April 15 every year is the National Security Education Day for all.

Prosperity and security are the most basic and universal aspirations of the people. To realize the Chinese dream of the great rejuvenation of the Chinese nation and ensure the people live and work in peace and contentment, national security is the top priority. Maintaining national security is everyone's responsibility, and everyone can do it.