This paper has been prepared in order to analyze the construction of an identity of both Bangladeshi migrants (Samad Iqbal) as well as English men (Archies Jones) who emigrated from other countries. Those are close friends. Lived in the multicultural city of London in Britain. In the novel White Teeth, the author explores the problems resulting from immigrants from various countries living in Britain, especially those who have left behind physical artifacts (cultural properties) and intangible attributes relating to their ethnic group inherited from the past of the immigrants, who lived in Britain from the first generation to the second generation. The novel of the Smiths is interconnected with their past and also deals with their dissatisfaction with their lives in a society in which they live today. According to Smith, his work is sensitively concerned with the second generation immigrants and their beliefs, which are transmitted from ultra-modern societies via their bringing up, living standards, values, taboos, thinking processes, and the likes. The purpose of this paper is to evaluate the way in which the construction of identity of different characters in the novel White Teeth is explored through the lenses of different theories of social scholars, such as Colonial theory, hybridity theory, and post-modern era theories of identity in the social system. This paper also explores how characters existing in the novel construct identity of themselves and how different cultural interact on their identity formation in White Teeth