This paper discusses what conditions the poems of Wei, Jin, Southern and Northern Dynasties created for the prosperity of Tang poetry.

Poetry in Wei, Jin, Southern and Northern Dynasties laid an extremely important foundation for the development of poetry in later generations, which provided many possibilities and left many problems to be solved. Poetry in Tang Dynasty reached a new peak in the sublation and development of poetry in Wei, Jin, Southern and Northern Dynasties.

(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.