The present study aims at investigating the effect of using virtual social networks on the religious identity of high school students in Jahrom. The survey method was used in this research. The statistical population are whole male & female high school students in Jahrom, whose approximate numbers are about 7000 in the year 1400, of which 375 are selected as a sample by using multi-stage r&om sampling method. The research instrument is a questionnaire that has been used to determine its validity by face validity method & to determine its reliability by internal coordinated method by Cronbach's alpha method. The descriptive results revealed that the average score of students' religious identity in Jahrom was at moderate to high level. Analytical findings also showed that there was a significant relationship between cyberspace (total) & religious identity (total). Cyberspace (total) affects students' emotional & practical identity, but the relationship between cyberspace (total) & students' beliefs was not significant. Among the demographic variables, there was a significant relationship between gender, grade, field of study, type of schools, father's education, social class & students' religious identity. Explain the dependent variable in terms of the sum of independent variables. Target variables, activity & participation in cyberspace, cyberspace (total), attitude towards the contents in cyberspace, social class, gender, mother's job, field of study, father's job, father's education, are the strongest predictors of students' religious identity, respectively & these factors are able to explain 0. 151 of the variance changes in religious identity.
