In terms of genre, at this time, the orthodox poetry has matured and become a big country, and the seven-character poetry and quatrains have been fully developed, reaching the highest level in the history of poetry. In terms of style, realism and romanticism have been fully developed in this period, and their representatives Du Fu and Li Bai reached the two peaks of China's classical poetry. Other schools, such as frontier poets and idyllic poets, have also reached a high level.