The purpose of this study was to identify and describe: linkage control of the family against deviant behavior performed by students of SMP Negeri 2 Salatiga, linkages school environment against deviant behavior performed by students of SMP Negeri 2 Salatiga, and the relationship of society towards deviant behavior performed by students of SMP Negeri 2 Salatiga. The method used in this research is descriptive, because the descriptive method is focused on the actual problems as such at the time of the study. Thus the descriptive method is in accordance with the problem to be observed writer is about the causes of deviant behavior of students in Junior High School 2 Salatiga.Hasil research shows that the aberrant behavior of the student that occurred in connection with the state of the family, school, and community, namely by a busy family home as well as the number of family members who are less profitable within a family, dealing with the negative effects of the existing school environment, as well as the negative effects of the existing environment of the community.Keywoards : The causes of deviant behavior, students SMP