This study aimed to evaluate the relationship between the use of virtual social networks and feeling loneliness and adjustment of adolescents and investigated the relationship between variables. The present study was a survey and correlational study. The research population included all secondary school adolescent students of Kermanshah, who were living in this city in 2018. The multi-stage cluster sampling method was used in this study. The results showed that there was a relationship between using virtual networks and feeling loneliness and adjustment of adolescents.