Background: Time spent on social media users every day to encourage people always to know the development of information and make it part of their daily lives. Increased social activity in youth kalngan no accompaniment with increased knowledge about sexual health HIV / AIDS, sexually transmitted diseases (STDs), and contraception.

Aim: This study aims to determine the long-standing relationship with the Internet usage rate of reproductive health knowledge.

Methods: This study used a descriptive-analytic cohort study.

Results: The results of the research in this study are no long relationship with the Internet usage rate of reproductive health knowledge where the p-value 0.534> 0.05

Conclusion: There was no relationship between Internet usage duration with the level of knowledge of reproductive health.

Keyword: internet use, knowledge, reproductive health