“German Ideology”is recognized as the first systematic study of historical materialism. The basic principles and important ideas of historical materialism discussed in this work are: those engaged in practical activities are the starting point of historical materialism. The role of division of labor in the development of social history, the principle of dialectical relationship between productivity and production relations, economic foundation and superstructure. The interpretation and interpretation of the basic principles and important ideas of these historical materialism will help us understand and grasp the scientific system of historical materialism and the development process of Marxist philosophy.