Bullying in schools is an important current problem worldwide and is one of the most common anti-social behaviors among adolescents and children. A student is bullied when he is exposed repeatedly and over time to negative actions by one or more students. Aggressive behavior can be direct, including face-to-face confrontation; such as hitting, hitting, kicking and other types of physical harm; and indirectly involving a third party, such as social exclusion, spreading rumors and other types of psychological harm or even online (cyberbullying). The mission of any anti-bullying program is to prevent bullying before it occurs. However, research on bullying prevention is still developing. In light of the increasing prevalence of bullying in schools, schools need to improve the school climate by focusing on strengthening the educational system to reduce bullying.