Sheng Cha Zi Yuan Xi was a poem created by the Tang Dynasty poet Li Bai. It mainly used metaphor, personification and other rhetorical devices to vividly describe the atmosphere of the Mid-Autumn Festival and the poet's emotional experience. "When will the bright moon appear?" Through the relative relationship between "moon" and "wine", the elegant moon and the bold and unconstrained drinking were combined to create a romantic and bold artistic conception. The sentence "The moonlight before the bed is suspected to be the frost on the ground" was used to personify the scene of the moon to create a mysterious and quiet artistic conception through the confrontation between "the moonlight before the bed" and "the frost on the ground". The use of these rhetorical devices makes the language of the poem more vivid and vivid, allowing the readers to resonate and feel the poet's emotions and artistic conception. At the same time, these rhetorical devices also provided a guarantee for the artistic value of poetry, making poetry a classic in the history of Chinese literature.