Abstract: As lifestyle begins to replace social class, as the main type of social grouping and source of social identity, the idea of style is clearly becoming increasingly important in contemporary society and so in social semiotics. On the other hand, identity is a social product and it is constructed through the social interactions people have in their everyday lives. What people do in their everyday lives is indeed part of their lifestyle. Hence, there‘s a relation between lifestyle and the formation of one‘s identity. Under the light of social semiotics, The present essay studies the construction of identity based on the ‗semiotic resources‘ including family, school, and media by comparing the different lifestyles the main characters experience in the two societies pictured in Margaret Atwood‘s Oryx and Crake.