Abstract：Embodiment of the theme in Joyce's novel Ulysses, Criticism of Irish culture, relies not only on the creation of images of the main characters, but also on the description of alien images.This paper deals with the images of alien races and the background where they were created from the perspective of image studies based on the text of Ulysses, aiming to reveal the relationship between the creation of alien images and Joyce's intention in this novel, that is, construction of Irish cultural identity.

Keyword：alien illusion;ideology;colonialism;cultural identity;