Introduction: cyberbullying is a kind of aggression, deliberate action by a group or individual using electronic communication methods, is defined repeatedly and over time against a victim who can not easily defend himself.Aim: The purpose of this study was to determine the role of perceived parenting styles (authoritarian, authoritative, disregarded, and easy) and borderline personality disorder in cyberbullying through mediating role of empathy.Method: The tools used in this study included: Lopez’s cyberbullying questionnaire, Naghashan’s parenting style questionnaire, questionnaire of borderline personality disorder, the empathy questionnaire of Baron-Cohen and Will Wright. The sample consisted of 305 high school male students of Tabriz, who were chosen according to multi-stage cluster sampling method.Results: Path analysis results showed that perceived parenting (Authoritarian, authoritative, indifferent) and borderline personality disorder mediated by empathy can explain the cyberbullying changes.Conclusion: Based on these findings, it can be concluded that cyberbullying can be a reflection of perceived personality disorder and perceived child abusive, dispassionate, and also low level of empathy.