Background: Islamic boarding school system has long story in Indonesia, they covered as much 14.798 student whoare teenager between 9–15 year old. Problems encountered with adolescent sexuality and reproductive health. Methods:An explorative research implemented in 3 provinces ie East Java, Nusa Tenggara Barat (NTB), East Kalimantan and sixIslamic boarding schools. Data were collected through questionnaires about reproductive health. Results: It showed 48,5%of respondents didn't have enough knowledge, attitudes and behavior about reproductive health, 40% of respondents knewvery little about puberty, menstruation and wet dream, 71% of respondents had little knowledge about the risk of pregnancy;49% of respondents had not enough knowledge about sexually transmited diseases. 88% respondents said that they hadfall in love, 76% of respondents had positive courtship behavior. Conclusion: The information about reproductive healthin islamic boarding school for adolescents is still in adequate and only refer to yellow book. Health worker did not provideadequqte information. We still found student who have sex while when they were engaged still datting. Suggestion: Theneed of additional and up to date reproductive health information and the risks of sexual intercourse marriage it maybedelivery on interesting media, such as one social networking. A health reproductive modules consist of scientic materialand some knowledge has to be developed and should be delivery health worker. Reproductive health syllabus and trainingfor trainers for teachers of boarding school is needed.