Metaphor is not only a rhetorical device but also a cognitive tool that reflects human thought patterns,capable of uncove-ring the author's cognitive process in creation.Metaphors are particularly prevalent in poetry.Building upon the concept of metaphor theory proposed by Lakoff and Johnson,this article provides a cognitive interpretation and comparison of the metaphors in the poetry of Li Bai and Percy Bysshe Shelley.The paper aims to illustrate how poetry harnesses metaphors to generate its unique charm and widespread resonance.