Objective: Adolescent reproduction health should obtain special attention from various parties, but adolescent have not yet utilized reproduction health service qualitatively due to lack of family support factor and lack of knowledge on reproduction health service facility available. This study aims to identify  the relationship of family support for utilization of adolescent reproduction health service. Method: This  research  design used a correlational descriptive design with cross sectional approach. Sampling of 370 adolescents in the working area of Public Health Service (Puskesmas) Martapura 1 taken randomly. This research  instrument using of questionnaire family support and utilization of adolescent reproduction health service. The data is analyzed by using univariat testing, and bivariat testing by using spearman correlation. Results: Research result shows that there is a significant relationship between family support and utilization of adolescent reproduction health service (p value 0.000).  Conclusion: The results of this study indicate that the support provided by the family is very important for adolescents to be able to use adolescent reproductive health services properly. This research result has recommended in order that family and community can optimize their role in giving support to adolescent to increase the utilization of adolescent reproduction health service, and medical staff play important roles to increase socialization to parents and adolescent regarding the importance of utilization of adolescent reproduction health service.

Key words: family support, utilization of adolescent reproduction health service, adolescent, reproduction health