雪莱是英国浪漫主义诗歌杰出代表诗人之一,他提出的诗歌理论同样具有深刻的思想意义。想象是雪莱诗歌理论的核心,历来为评论家关注。然综观大多数国内外学者对雪莱诗论想象的研究,或者只是对其进行单纯地理论解读,全面却难免晦涩;或者结合实例指涉阐释其某一方面,具体却不够系统。本文结合雪莱的具体诗歌,试从想象与诗歌相辅相成的关系、想象丰富诗歌语言的表现力以及想象赋予灵感创造力量三方面进行阐释说明,由此得出结论:雪莱之所以推崇想象,既是浪漫主义诗歌创作的需要,以驱散古典主义后期的消极影响,也希望借此激发英国人民对自由与民主的追求。 Shelley is one of the outstanding representative poets of English romantic poetry, and his poetry theory also has profound ideological significance. Imagination is the core of Shelley’s poetry theory, which has traditionally been the focus of critics. However, when we look at the study of Shelley’s poetic imagination by most scholars both at home and abroad, or simply interpret it purely in theory, it is unavoidably obscure. However, it is not systematic enough to explain some aspect of Shelley’s poetic imagination. In this paper, Shelley’s specific poems, from the imagination and poetry complement each other to imagine the richness of imaginative poetic language and imagination to give inspiration to explain the three aspects of creativity, concluded that: Shelley reason to promote the imagination, both The need of romantic poetry creation to disperse the negative influence of the late classicalism and to inspire the British people to pursue their freedom and democracy.