Purpose: This study was conducted to explore sexual attitude, sexual behavior and the related factors in chinese-Korean university students. Method: A self-administered questionnaire with cross-sectional design was used. Participants were 271 Chinese undergraduate students in one university in Jilin, China. Correlation coefficiency and t-test were used to find the relationships and to compare sexual attitude and sexual behavior and related factors. Result: Although sexual attitude of participants was moderate, they were more likely to be engaged in sexual behavior. The strong relationship between sexual attitude and sexual behavior suggested that those who have a permissive sexual attitude were more likely to have engaged in sexual behavior. The participants who responded that their parents have a less permissive attitude about sexual activity were less likely to be engaged in sexual behavior. There were significant relationships between sexual behavior and other variables, such as dating, experience of sexual activity, smoking and grades. Conclusion: Students who have a higher score of sexual attitude and had an experience of sexual activity were more likely to be at higher risk of being sexually.