Nan Zhou Guanju, a national style, is a Han folk song in the pre-Qin period. It is the first poem in The Book of Songs, and is generally considered as a love song describing the love between men and women. This poem skillfully adopts the expression of "xing" in art. In the first chapter, the pheasants are singing and falling in love, which raises an association of a lady accompanying a gentleman. In the next chapter, the act of picking shepherd's purse leads to the hero's crazy love and pursuit of women. The language of the whole poem is beautiful, and it is good at using double tones, overlapping rhymes and overlapping words, which enhances the phonological beauty of the whole poem and the vividness of pictophonetic expression. The Book of Songs is the first collection of poems in the literary history of Han Dynasty. It had a far-reaching impact on the development of poetry in later generations and became the source of the realistic tradition of China's classical literature.