When the formation of self-identity reaches the peak of adolescence can experience sexual identity disorder. The development of cases of LGB perpetrators among students who are at the stage of late adolescent development is an indication of the disruption of the formation of adolescent self-identity. One reason is that the education system in the family does not work well. This study aims to explain the direction of student sexual attraction and the existence of the family in preventing LGB among students. The results of the study showed that the sexual orientation of students was in a good category, so prevention efforts were needed so as not to fall prey to LGB behavior that was increasingly developing among the millennial generation