The current research aims to know the development of moral disengagement in children and adolescents. Several studies have indicated that there is a development of moral disengagement at various stages of life. The role that moral disengagement plays in how it perceives its relationship with other variables such as aggression and committing cyberbullying has been linked to a study. Moral disengagement from contexts and phenomena such as face-to-face bullying. From a cognitive theory perspective, there are factors that may be equally important regarding children and adolescents’ perception of violence. Specifically, the morals they use can influence the viewpoint of both aggressors and victims. Moral disengagement can be defined as the concept of moral disengagement by referring to the mechanisms that people use as a barrier between their individual moral principles and their actual behavior. Moral disengagement uses several mechanisms that operate on different sites of self-regulation, including moral justification, useful comparison, shifting responsibility, and dehumanizing the victims to reduce the humanity of the victims and attribute responsibility. By looking at the victim as primarily responsible for this behavior, the levels of moral disengagement among children and adolescents who are victims of violence have become clear: their acceptance of violence and their inability to recognize abuse. Finally, the psychological study aims to know the extent of the development of moral disengagement and reduce the use of moral disengagement. Which occurs in children and adolescents