PURPOSE: This study was performed to investigate the effects of moral sensitivity and ethical values on biomedical ethics awareness of nursing students. METHODS: A descriptive survey design was used for this study. The participants were 324 nursing students from S University located in J city. The data were collected through a questionnaire survey done from September 30 to October 18, 2014. Data were analyzed using a t-test, ANOVA, Scheffe's test, Pearson correlation coefficients, and stepwise multiple regression. RESULTS: The factors influencing nursing students' biomedical ethics awareness were identified as moral sensitivity(beta=.34), ethical values(beta=.11), awareness of Korean nurses' declaration of ethics(beta=.15), religion(beta=.14), and religious activity(beta=.12). Five factors explained 10.8% of nursing students' biomedical ethics awareness. CONCLUSION: The results of this study can be used to develop further educational programs on the moral sensitivity and ethical values for enhancement of nursing students' biomedical ethics awareness.