Purpose: This study was done to identify factors that influence sexual permissiveness. A comprehensive analysis of individual, family, and social factors related to sexual permissiveness in adolescents was done. Method: A descriptive research design was used to explore causal relationships in sexual permissiveness between high school students. Result: The findings of this study are as follows. 1) For individual factors, self-respect. seeking social deviation and seeking internal experience were confirmed as factors influencing sexual permissiveness. 2) For the family factors, the mother-adolescent communication aspect was confirmed as a factor. 3) For the social environment factors. adaptability to school life was confirmed as a factor. Conclusion: On a theoretical basis, this study identifies factors influencing sexual permissiveness in adolescents, and thus contributes to the definition of a desirable sexual culture for young people. Therefore, it is suggested that programs be developed that control the corroborated factors and that further studies be conducted to validate the factors.