The significance of college students' learning national security knowledge lies in cultivating national consciousness and responsibility consciousness, improving safety consciousness and preventive ability, ensuring the long-term development of the country and maintaining social stability. By learning the knowledge of national security, college students can deeply understand the challenges and threats facing national security and realize their roles and responsibilities in national security. The cultivation of this kind of consciousness is helpful to stimulate the patriotic enthusiasm of college students, enhance the sense of national identity and further condense the strong national cohesion. In addition, learning national security knowledge can improve college students' safety awareness and preventive ability, so that they can better cope with various security risks and crises and protect themselves and the people around them. The most important thing is that college students' study of national security helps to maintain the long-term development of the country and social stability. Only when college students master the knowledge of national security can they form a strong talent pool, provide solid support for various national undertakings and ensure the long-term stability of the country. Therefore, it is of great strategic significance for college students to learn national security knowledge.