Victimization of children and adolescents is a factor whose various aspects and effects in criminology and criminal law have always been the subject of special studies and regulations. Because children are more vulnerable to both delinquency and victimization than adults. That is why. that according to clinical criminology, even delinquent children are placed in special authorities and according to the special procedure of trial and the subject of protective and educational measures in the correction and education center, and therefore the mission of penal law is to protect and protect delinquent and delinquent children and adolescents in It is equal to the repetition of the crime and the repetition of the victimization. The modern knowledge of child criminology tries to, in addition to emphasizing the duty of the society, in order to try to maintain the safety of the children of the society, especially the vulnerable children, working children, refugees, rural and disabled children, etc. in order to use techniques and strategies to prevent the victimization of children in front of potential adult criminals to be safe from victimization. Protection of children against criminals does not lead only to victimized children, but includes children who are criminals. Because child delinquency can be Dlead to his victimization and it is difficult to distinguish the border between the two. For this reason and due to the importance of the topic in this research, we intend to examine and identify the types of prevention of child and adolescent victimization in Iran's penal system