比喻意象是诗人在物与物、情与物之间创造、设置、构结出的一种新的关系。刘勰将《诗经》到南朝的比喻意象区分为比义和比类两种类型。魏晋南朝的比义意象是索物取象以类比诗人的思想感情与意念；比类意象主要是对外在声响色貌的比拟，其中有的是缺乏主体心灵因素穿透的技巧性牵合，有的则具有丰富的审美内涵。魏晋南朝诗人还创造出具有派生和扩展功能的比喻意象，而且出现了比喻意象中比喻关系淡化，本、喻体融合，从而向广义的隐喻转化的趋向。 Metaphorical imagery is a new relationship created, set and constructed by poets between things and things, between love and matter. Liu Xie divides the metaphorical image from “the Book of Songs” to the Southern Dynasties into two types: comparative justice and comparison. The images of meanings in the Wei, Jin and the Southern Dynasties are the feelings and ideas of the analogy of poets by taking the objects as the objects; the images of the images are mainly compared with those of the external sounds, some of them lack the skillfulness of penetrating the main psychic factors, It has rich aesthetic connotation. The Wei Jin and the Southern Dynasties poets also created metaphorical images that have the functions of derivation and expansion. Moreover, the metaphorical metaphors tend to be metaphoricalized through the metaphorical desalination, metaphorical fusion, and metaphoricalization.