罢黜百家，独尊儒术
bà​chù​bǎi​jiā, dú​zūn​rú​shù

Confucian orthodoxy

罢黜百家，独尊儒术 (罷黜百家，獨尊儒術) bà​chù​bǎi​jiā, dú​zūn​rú​shù
Confucian orthodoxy
the Han dynasty policy of dismissing other schools of thought to establish Confucianism as the sole state ideology
ideological monopoly
the act or policy of establishing a single doctrine as the absolute authority while suppressing all alternatives

Sources
Definitions
CC-CEDICT