Modernism is a movement of artists and designers who rebelled against late 19th century＇s academic and historicist tradition, and embraced the new economic, social and political aspects of the emerging modem world. This thesis is going to analyze the key dements like experimentation, anti-realism and individualism of Modernism in literature by introducing well-known writers and their works in different period. The thesis also draws a conclusion that the work of modernist writers is characterized by showing the disenchantment, dislocation, and alienation of men in the world, and by the emphasis on experimentation and formalism and objectivism which are reactions to the cataclysm known as the Modem Age.