Abstract: The spirit of the Long March is a symbol of the revolutionary spirit of China. Cultural confidence is the pride and firm belief of a country and nation in its own cultural vitality. Cultural confidence includes subjective confidence, spiritual confidence, ability confidence and behavioral confidence. These four aspects of confidence are also deeply embedded in the spirit of the Long March that are confidence in the Chinese nation, the CPC and the Chinese people, confidence in the revolutionary spirit, confidence in the spirit of the Long March to constantly develop and innovate, and confidence in the revolutionary behavior to march forward. It is precisely with these four confidences that the spirit of the Long March can be passed down from generation to generation, never dried up, and provide strong impetus for realizing the Chinese Dream of great rejuvenation of the Chinese nation.