Purpose: The purpose of this study was to understand the correlations between transitional shock, incivility and nursing professionalism among nursing students. Methods: A total of 143 nursing students completed transitional shock, incivility and nursing professionalism, using structured questionnaires. The collected data were analyzed using the t-test, ANOVA, Pearson’s correlation coefficient, and multiple regression analysis. Results: The results showed that nursing professionalism was significantly correlated with gender (β=.20, p=.001), major satisfaction (β=.44, p=.007), clinical practice satisfaction (β=.45, p<.001), transitional shock (β=-.20, p=.012), and incivility experienced (β=-.18, p=.021) among nursing students. Conclusion: It is necessary to develop a plan for reducing individual satisfaction with clinical practice and the transitional shock of nursing students. It ultimately may increase nursing students’ nursing professionalism. In addition, a strategy is needed to reduce incivility among nursing students by creating positive educational environment in clinical practice through cooperation between schools and training institutions, and to strengthen desirable nursing professionalism.