The concept of religious identity is recently used in the social and political thought of liberal societies, and the main research question is how post-modern thinkers look at religious identity? In response, the evolution of thinking in the perception of religion and identity and the creation of the concept of religious identity in close connection with who I am and what I believe were discussed. Thinkers consider objectivity and subjectivity in cultural and social aspects of religious identity and consider indicators of affection, awareness and commitment. It is considered a process of seeing, survival, continuity and precedence of religious identity along with other social identities due to the regularity with the special coherence of religious identity, and what is the main concern of identity politics is the widespread social manifestation of religious identity, which can be called the concern of religious identity politics. known among thinkers. In criticizing the approach of post-modern thinkers, the shortcomings of functionalist views, the backward and superficial view of religious identity and the lack of examination of the nature of the social values of religions have been discussed in the research.