Taking historical materialism as the theoretical basis for interpreting history is one of the scientific methods by the Communist Party of China to evaluate history and sum up experience for more than 100 years. The “Resolution of the CPC Central Committee on the Major Achievements and Historical Experience of the Party over the Past Century” adopted by the Sixth Plenary Session of the 19th Central Committee of the Communist Party of China summarizes the historical experience of the Party’s century-old struggle with “Ten Persistence”. It shows the Party’s profound understanding of the relations between proletarian parties， leaders， and masses， the dialectical relations between social existence and social consciousness， social historical development dynamics theory， unbalanced development of social contradiction theory， and Marxist world history theory， etc. It fully embodies the unity of the Party consciousness and people consciousness， law compliance and purpose compliance in the time and space dimension of the Party over the past century. It also provides methodological guidance from historical materialism for promoting the development of socialism with Chinese characteristics in the new era.