The main connotations of the spirit of the Long March are: revolutionary optimism willing to endure hardships and not afraid of difficulties; Heroic and invincible revolutionary heroism; Emphasize the courage of seeking truth from facts and independent innovation; Good at unity, collectivism and taking the overall situation into account. Its theme is "one is not afraid of suffering, and the other is not afraid of death"; Its most striking feature is the spirit of revolutionary heroism. The spirit of the Long March is the highest expression of the indomitable and self-reliant national spirit of the Chinese nation and a powerful spiritual force to ensure that our revolution and construction cause will move from victory to victory.