Abstract: During the theoretical exploration and revolutionary practice of their lives， Marx and Engels formed an important theory on scientific thought of authority. Marx and Engels broke the shackles of feudal and bourgeois authorities， explored in depth the scientific authority based on the proletariat itself committed to the grand goals of communism， and finally established their thought of authority with ternary connotations from the Party， politics and society， which pointed out the direction for the proletarian movement and human liberation. The CPC has continuously inherited and innovated Marx and Engels' thought of authority， given meaning of the new era to the classics， upheld and maintained the Party's authoritative leadership， followed the authority of the people， and made solid progress towards the “Chinese Dream” of great revival enlightened by the thought of scientific authority.

Key words: Marx and Engels, thought of authority, authority from the Party, political authority, social authority