Refers to nearly 100 years of poetry from around the Opium War in 1840 to the rise of the May 4th Movement in 1919. It represents the poetry of a historical period, that is, the bourgeois old-democratic revolutionary period, and is also the transition from traditional classical poetry to new poetry of modern significance. It has a status that cannot be ignored in the history of Chinese poetry. During this period, poetry was quite prosperous, with a large number of writers and works. Chen Yan's "Modern Poetry Notes" only collected what he saw and heard, and recorded more than 360 poets since Xianfeng. Sun Dianqi's "Shu Shu Ou Ji" and its "Sequel" record no less than 1,500 collections published since Daoguang, many of which are collections of poems or poetry essays.