This paper aims to explore the issue of racial discrimination and isolation experienced by the immigrants of Samuel Selvon's The Lonely Londoners. Selvon interprets the pros and cons of living in London, as it is a city where many religion, races, cultures and ethnicities can be seen. He delineates the problems, dilemma and plight of Trinidadian immigrants in a rapidly changing metropolitan world. Moreover, the problems faced by the immigrants and the obstacles which do not allow them to integrate with Anglo-saxon culture are highlighted in this study. The paper also centers on how racial discrimination culminate and intensified their feeling of isolation and exile.