Background Nurses frequently experience ethical issues in their area of practice. In the challenging reality of today’s healthcare environment, nursing students need to be prepared to deal with ethical issues in their future roles. Nevertheless, Chinese nursing students’ ethical sensitivity status and the factors influencing it have not been described. Objective This study aims to explore the level of ethical sensitivity and its influencing factors among Chinese nursing students. Research design This was a cross-sectional study. We firstly cross-culturally adapted the (...) Japanese version of the Ethical Sensitivity Questionnaire for Nursing Students (ESQ-NS) into a Chinese version. Then, we administered the Chinese version of ESQ-NS, the Caring Ability Inventory (CAI), and general information questionnaire to nursing undergraduates. Participants and research context The invitations were sent to 600 nursing undergraduates from four universities in Hunan, China. Ethical considerations The study was supported by the Institutional Review Board (IRB) of the lead university. The Approval No. was E202092. Results A total of 489 undergraduate nursing students participated in the study. The mean score for ethical sensitivity of the samples was 36.34 ± 4.90, and 187.99 ± 22.64 for their humanistic care ability. Pearson’s correlation coefficient test indicated a meaningful and positive relationship between the ethical sensitivity and humanistic care ability (r = 0.576 and p <.01). And regression analysis showed that age, school year, experience in studying nursing ethics, how much you like nursing major, and humanistic care ability were of relevance to nursing students' ethical sensitivity. Discussion Our findings suggest that the mean ethical sensitivity score of Chinese nursing students is 36.34 (13–52). The humanistic caring ability of Chinese nursing students is still at a low level. Conclusion Future interventions for improving the ethical sensitivity of the nursing students should consider general information of participants and their humanistic care ability. (shrink)