Children are influenced by their family, society, and cultural environment as they grow. Particularly, the influence of the family deeply affects adolescent behavior in almost every aspect, including personality, learning, and social adaptation. This study analyzes the impact of parental upbringing attitudes on children's delinquent behavior in this context. The study contributes to parental upbringing and delinquency-related research in two main ways. First, it verifies the effects of parental upbringing attitudes separately for mothers and fathers. Second, it analyzes how parental upbringing attitudes influence children's delinquent behavior through cognitive processes, specifically examining the role of adolescents' criminogenic knowledge structure as mediators. To achieve this, a survey was conducted among approximately 200 students attending 00 High School in Gyeonggi Province. The analysis results showed that parental upbringing attitudes had statistically significant effects on adolescent's delinquent behavior. Although the influence of parental upbringing attitudes on delinquent behaviors appeared to be slightly more important for fathers compared to mothers, the difference was not statistically significant. The key finding of this study is that the influence of parental upbringing attitudes on adolescent delinquent behavior is fully mediated by adolescents' criminogenic knowledge structures. Finally, the study's limitations and future recommendations are provided.