Background: Adolescents are individuals who are in transition between childhood to adulthood, which is considered a period of looking for identity and have a high curiosity, so that adolescents are easily influenced by the environment, including sexual behavior. Parenting patterns is one of the most important aspects that can affect premarital sexual behavior in adolescents. In adolescents who live in boarding house with bad supervision from parents prone to premarital sexual behavior, whereas in students who live with parents with good supervision will prevent teenagers perform premarital sexual behavior. Objective: This study aims to determine the relationship of parenting patterns with premarital sexual behavior in PSIK UMY students who live in boarding house and living with parents. Method: This research is correlation research using quantitative approach with cross sectional design. This research was conducted in March 2018 in PSIK UMY. Sampling technique in this research by purposive sampling. The respondents were 197 students living in boarding house and 73 students living with parents. Analysis of this research data using Chi-Square test. Results: The results of this study indicate that most respondents have the type of democratic parenting that is as much as 163 respondents (82.7%) in students living in boarding house and 65 respondents (89.0%) in students living with parents. Premarital sexual behavior of PSIK UMY students was mostly in the low category of 185 respondents (93.9%) in students living in boarding house and 63 respondents (86.3%) in students living with parents. Data analysis in this study used chi-square with result p = 0.402 on student living in boarding house and p = 0.285 at student living with parent (p value > 0.05). Conclusion: In this study it can be concluded that there is no significant relationship between parenting patterns on premarital sexual behavior in students living in boarding house or in students who live with parents.