(1) In content, Yuefu folk songs in the Southern and Northern Dynasties made great achievements, which reflected the combination of realism and romanticism in content, and had a great influence on literati's poetry creation since the Tang Dynasty.
(2) From the formal point of view, pastoral poetry and landscape poetry, which account for a large proportion in Tang poetry, originated in Wei, Jin, Southern and Northern Dynasties. Tao Yuanming was the most accomplished poet in this period, and he created a simple and natural style of pastoral poetry. Xie Lingyun and Xie Shu completed the transformation from metaphysical poetry to landscape poetry, and started the school of landscape poetry. Bao Zhao's poetic style also had a great influence on the Tang people, and his Yuefu poems influenced Li Bai's singing style. His frontier poems influenced Gao Shi and Cen Can's frontier poems.
(3) Genre: Five-character quatrains were created in the folk songs of the Northern and Southern Dynasties, which were improved by the writers and later became one of the main forms of Tang poetry. In particular, the development of seven-character poems paved the way for the development and maturity of seven-character songs in Tang Dynasty. Bao Zhao made an important contribution to the development of seven-character poems. On the basis of studying Yuefu in Han and Wei Dynasties, Bao Zhao created a large number of seven-character metrical poems, which not only enriched this form with rich contents, but also changed it, changing the rhyme from one sentence to every other, and freely changing the rhyme. In addition, Xie Tiao's new-style poems also set a precedent in the Tang Dynasty in rhythm and realm. "Yongming Style" is a new style of poetry. It is the beginning of China's metrical poems, and with the efforts of Yu Xin and others, it has the embryonic form of later metrical poems. These poetic achievements have prepared sufficient conditions for the development and prosperity of Tang poetry.