1) National spirit has strong social cohesion and centripetal force, which is the spiritual foundation of national stability and development. Without this spiritual foundation, the country will lose its long-term unity, stability and development, and it will be impossible to remain invincible in the fierce competition. (2) National spirit is conducive to enhancing the self-confidence, self-reliance and self-improvement of the Chinese nation. In today's world, facing the general trend of political multipolarization, economic globalization, cultural diversity and information networking, facing the cultural infiltration and economic expansion of western developed countries, facing hegemonic power politics and military threats, and facing the complex forms of mutual agitation of various ideologies and cultures around the world, it is particularly important and urgent to carry forward and cultivate national spirit and establish the idea of national self-confidence, self-improvement and advancing with the times. (3) National spirit is the core content of improving the ideological and moral quality and scientific and cultural quality of the whole nation, and has become the core of improving the comprehensive quality of the Chinese nation. (4) National spirit has important practical and far-reaching historical significance for building a well-off society in an all-round way and realizing the great rejuvenation of the Chinese nation.