Objectives: The purpose of this study was to identify the current status of contraception use and analyze factors affecting contraception use among Korean adolescents. Methods: This cross sectional study used secondary data from the 2013 Adolescent Health Behavior Online Survey (KYRBS), which included a nationally representative sample of middle and high school students. A total of 3,475 adolescents who had experienced sexual intercourse were included in the study. Results: Almost 4.8% of total adolescents experienced sexual intercourse. Only 26.8% of them had sex with contraception. The significant predictors related to contraception use were as follows: sexual intercourse experience after drinking (OR=2.02) and living with mother (OR=3.00) for male middle school student, first intercourse experience (OR=2.04) for female middle school students, and first intercourse experience (OR=1.59) and intercourse experience after drinking (OR=0.56) for male high school students. On the other hand, there were no predictors for female high school students. Conclusions: Development and application of effective strategies according to gender and school level are needed to increase contraception rate of adolescents.