Prevention of offenses, especially child offenses, is a major subject of criminology. This article aimed to investigate the prevention of children crimes in Shiraz using international instruments. This article was a survey, and its statistical population consists of 255 Law students in Shiraz. The sample size was determined by the Cochran formula (152 people). A questionnaire was used to gather the data. Expert views were used to confirm the nominal and content validities. The Cronbach’s alpha was estimated to be higher than 0.7, which indicates the internal consistency of the questionnaire and a confirmation of its reliability. Data were analyzed by one-sample t-Test and SPSS software. The findings suggested that international laws have focused on crime prevention. The United Nations Congress on Crime Prevention and Criminal Justice, held every five years, stresses the rule of law and non-criminal crime prevention through the participation and collaboration of NGOs and popular organizations. As international laws suggest, the most important crime prevention method which best applies to children crime prevention is non-criminal prevention based on community- and growth-oriented prevention.