This article is to exarnine the various identity quests of the colonized subject, focusing on James Joyce`s perspective on (post)colonial culture which resists any exclusive essentialism based on racial and sexual binary opposition. James Joyce tried to examine the hegemonic structure of imperialism in Ireland. Furthermore, Joyce described the dispossessed experiences of the colonized subjects, struggling against national and racial oppression in his works. In the introduction I examine how Joyce`s works have been received by the Joyce critics. Most Critics of New Criticism and Marxist Criticism considered Joyce as an apolitical modernist writer who was only intereste in testual experiments and the narrative techniques. But, this article indicated that Joyce should be considered as a postcolonial writer who was concerned with the political issues of national consciousness and culture for his country. In colonized Ireland, the oppressed subjects often mimic the oppressor and internalize the oppressor`s idea and culture. But, Stephen Dedalus in A Portrait of the Artist as a Young Man and Ulysses tried to escape from the situation of the paralysis. In the end of the Portrait, Stephen declares non serviam against the societal nets that entrap him. The second part of article is to examine the various quests of the subjects. The main characters of Ulysses-Stephen Dudalus, Leopold Bloom-tried to investigate their way of resistance against the imperial authority. Stephen, who thinks he is a servant of both English imperialism and Roman Catholicism, rejects Mr. Deasy`s political pro-Unionism, historical deteminism, and racial anti-semitism. Bloom, who always interested in cultural differences and parallel perspective, extends his own imagination beyond the monologic limitation of rigid nationalism. Therefore, in his work Joyce supports a tolerant society of "universal brotherhood" which is not fractured by a exclusive allegiance to language, religion, of nationality. Joyce tried to suggest the postcolonial world where everone is treated equally beyond racial, religious, sexual differences.