Since the 18th National Congress of the Communist Party of China, the Central Committee of the Communist Party of China has always emphasized the issue of struggle and repeatedly asked the leading cadres of Party members to carry forward the spirit of struggle and enhance their fighting skills. The report of the 20th National Congress of the Communist Party of China put forward for the first time "three musts", the third of which is "must dare to fight and be good at fighting", which puts forward clear requirements to deal with many risks and challenges better. Under the background of the times when "two overall situations" are intertwined and superimposed, it is necessary to grasp scientifically and understand deeply the connotation, basis and practical requirements of the struggle and learn to understand and implement the spirit of the 20th CPC National Congress.