This study verifies the double mediating effect of parental monitoring and the psychopathic deviate in relation to the callous-unemotional traits and aggressive behavior of the bully and bully-victim adolescents of school violence. The self-reporting evaluations on callous-unemotional traits, parental monitoring, the psychopathic deviate, and aggressive behavior were conducted with 414(204 bullies, 210 bully-victims) teenagers and their parents who were brought to the counseling center for school violence problems. A Process Macro 6 model was established and verified based on prior research results and theoretical background. The results are as follows. First, the callous-unemotional traits of the bully and bully-victim adolescents with the psychopathic deviate and aggressive behavior showed static correlations. However, with parental monitoring, it showed negative correlations. Second, by utilizing the Process Macro, the double mediating effect of parental monitoring and the psychopathic deviate of the bully and bully-victim of school violence was significant in the effect of the callous-unemotional traits on aggressive behavior.