Promiscuity in adolescents, especially in high school students nowaday have become one of the causes of the premarital sexual behavior. One of the factors related to the premarital sexual behavior is attitudes. Attitudes is a prediction of behavior, especially attitudes toward premarital sexual behavior in adolescents. This study investigated the differences of attitudes toward premarital sexual behavior in general high school students and boarding school students in Banda Aceh. A number of 130 students (65 general students and 65 boarding school students) were invited to participated in this study that were selected by using kuota sampling technique. The data were collected by using a scale of attitudes toward premarital sexual behavior. The result of data analysis used independent sample t-test shown a significant level p = 0.068 (p> 0.05) and reliability coefficient 0.96, which meant the hypothesis of this study was rejected. The study showed there was no significant differences of attitudes toward premarital sexual behavior on general and boarding high school students in Banda Aceh. Keywords: Attitudes, Premarital Sexual Behavior, High School Students.