This study attempted to find out the differences between Christian and Non-Christian college students in terms of sexual attitudes, sexual behaviors, sexual abuse experiences and self-esteem. The subjects consisted of 1309 college students, and a set of questionnaires regarding sexual behaviors were administered to them. The results demonstrated that Christians had more negative attitudes toward masturbation, pre-marital sex, and homosexuality than non-Christians did. The Christian subjects reported masturbating less during adolescent periods and felt more guilty about it than the non-Christians. Regarding pre-marital sex, Christians showed more negative attitudes and felt more guilty about pre-marital intercourse although both Christians and non-Christians held permissive attitudes towards pre-marital sex. As expected, the Christians were more negative toward homosexuals than the non-Christians. Among the 25 subjects sexually abused in a religious setting, 18 people (72%) were Christians, indicating that sexual abuse in the Christian community is problematic. The self-esteem of sexually abused victims were lower than that of non-abused people. Further discussions and suggestions about the future are elaborated here.