The main purpose of this paper is to evaluate the compliance status of the cultural identityof the members of the social network Face book case study of Tehran University's undergraduate student majors. This paper reviews the status of student commitment to social network facebook, the facebook components and indicators of cultural identity. This paper is exploratory and the results of a survey. The subjects of this study are students of Tehran University undergraduate courses. The data collection techniques used questionnaire and structuralism theories of Anthony Giddens and Stuart Hall's Representation. The findings suggest that membership and participation in the community of single women aged 20 to 22 years compared with men in Face Book more. Sense of belonging to the Persian language، Friendship is based on values ​​and norms, Choose dress and makeup according to the values ​​and norms، respect to different cultures and nationalities Notes and Comments on Face book Students will adhere to the cultural identity of anecdote on Face book On the other hand, students who disagreements with their religious norms - National and tend to less their use of religious symbols and sayings، Interest in learning Linguistic terms Common on Face book suggest a Cultural identity is a lack of to adhere to students. Cultural identity indicates that the content of the benchmark to evaluate students on Face book, change, comparison, and selection is located.