Abstract
This year marks the 200th anniversary of the birth of the great proletarian revolutionary mentor Engels, and the theoretical community has once again started a wave of research on his thought. On the basis of Hegel's dialectic, Engels inherited and developed Marx's dialectic, and founded the materialist dialectic, which he called "the best tool and the sharpest weapon". However, the relationship between Engels' materialist dialectics and Marx's dialectics has been debated for more than a hundred years in the theoretical circles both at home and abroad, and it is of great significance to correctly summarize and elaborate the domestic and international views in order to clarify the internal logic and truth of Engels' materialist dialectics.