The CPCs 100year building of the Chinese National Community is a process of unifying theory, history and practice and highlights its threefold logic: theoretical logic, historical logic and practical logic. Such a process of theoretical exploration is manifested in the unification of Marxs “real community theory” and the traditional “natural community”, reflecting the theoretical logic of the construction of the Chinese National Community. It is reflected in the historical evolution logic of saving, rejuvenating, enriching and strengthening the nation, as well as in that of evolving from “imaginary community” to “real community”. It shows a unique practical logic——the leadership of the Communist Party of China is the practical guarantee for building the Chinese national community, the value consensus is the the practical basis, and integration is the practical path.