The ancient prose movement advocated by Liu Han opened up the development path of ancient prose since the Tang Dynasty. Korean poetry strives for novelty, emphasizing momentum and originality. Taking prose as poetry, Han Yu introduced the new language, rules and techniques of ancient China into the poetry circle, which enhanced the expressive function of poetry, expanded the field of poetry, and corrected the mediocre poetic style since Dali (766-780). In terms of feudal ideology and morality, he is also unique, vigorously advocating Confucianism, advocating the inheritance of Confucian orthodoxy, and creating Neo-Confucianism in Song and Ming Dynasties.