The purpose of this study is to investigate the relationship between identity styles and marriage expectation. This study has a correlational design. For this purpose, 426 students of Azad Science and Research University of Fars are selected and filled marriage expectation scale and Identity Style Inventory of Berzonsky (ISI-6G). The results of the study indicated that there is a significant positive relationship between informational and normative style and marriage expectation and a significant negative relationship between diffuse style and marriage expectation. Also there is a significant difference between informational and diffuse styles. The results showed that different styles of identity in people predicted their marriage expectation. The positive relationship between the identity styles and marriage expectation can be explained by Ericsson theory.