Ancient poetry is divided into several couplets.

Ancient poetry is divided into first couplet, parallel couplet, neck couplet and tail couplet. Here, metrical poems are used to illustrate that only metrical poems can be separated from ancient Chinese poetry. Metric poetry is a genre of China's traditional poetry, which belongs to the category of modern poetry and is named after the strict requirements of metrical poetry.

Rhyme has strict rules in terms of words, rhymes, even words and antithesis, and the common types are five-character metrical poems and seven-character metrical poems. Metric poems originated from Shen Yue and other new-style poems that emphasized the antithesis of metrical poems in the Southern Dynasties, and were further developed and stereotyped by Shen Quanqi and Song Wenzhi in the early Tang Dynasty, which prevailed in the Tang and Song Dynasties.