German Ideology is the most important work written by Marx and Engels in the period of constructing the theory of "new materialism". In this book, Marx and Engels make great efforts to criticize the young Hegelian philosophy represented by Feuerbach, and systematically demonstrate and elucidate the historical materialism. Although the principle of historical materialism is not very complete and comprehensive, with the development of the times, the research scope of Marxist philosophy is becoming wider and deeper. The continuous interpretation of historical materialism in German Ideology is conducive to the excavation of its contemporary value.