The present study aims to identify the role of security and educational measures in the resocialization of juvenile delinquents in Tehran, using a quantitative research method based on a questionnaire and its statistical population includes juveniles in the Shahid Fahmideh Judicial Complex during the years 2016 to 2019. Given the limitations of the statistical population in the present study, an attempt has been made to provide the research questionnaire to juveniles in the Shahid Fahmideh Judicial Complex during the years 2016 to 2019; therefore, all units of the community as sample units have had an equal chance of collecting data. Finally, after referring to the members of the statistical population, 158 questionnaires were completed, collected, and analyzed. The research findings indicate that there is a significant relationship between the two variables of Iran's criminal policies towards juvenile delinquents and their resocialization. In other words, the more Iran's criminal policies towards juvenile delinquents improve, the faster their resocialization will be, and vice versa. In general, the findings show that child and adolescent custody programs and measures are far from modern scientific approaches, and adopting a strict custody policy without considering the emotional needs of children and adolescents and providing support platforms after leaving cannot lead to the reform, rehabilitation, and reconstruction of the personality of the juvenile in conflict with the law. It is suggested that planning be used to draw a roadmap, especially paying attention to mediation and the possibility of referring to a mediator in all juvenile and adolescent crimes, and that other restorative justice-based programs such as creating a social circle of treatment and adolescent participation in decision-making be considered, taking into account the principle of respecting the best interests of the child.