Realizing modernization is the fundamental interests of Chinese people,the dialectical unity of human' s modernization and social modernization lies in the whole process of modernization. Guided by the thought of classical Marxism writers,through analyzing the theory of the western scholars and Chinese scholars on modernization and social modernization,to recognize the relationship between the two has the practical significance for understanding that it is an important and urgent issue to realize the human's modernization and social modernization. Therefore,to realize the human's modernization and social modernization has to consider the problems we should pay much attention to.