Objectives This study investigates the effects of major satisfaction, organizational socialization, and teamwork on professional socialization among nursing students. Methods Data collection was conducted on 188 Nursing students from December 1 to December 10, 2023, at G city and the responses to the questionnaire were analyzed by descriptive analysis, t-test, One-way ANOVA, Pearson's correlation coefficient, and Hierarchical Multiple Regression Analysis. Results As results of this study, shared major satisfaction scored 4.14 out of 5, organizational socialization was 4.14 out of 5, teamwork was 3.80 out of 5, and professional socialization was 3.96 out of 5. Professional socialization was correlated with major satisfaction (r=.686, p<.001), organizational socialization (r=.727, p<.001), and teamwork (r=.448, p<.001). Satisfaction with clinical practice (β=.287, p<.001), satisfaction with the nursing major (β=.171, p<.05), and interpersonal relationships (β=.293, p<.001) were found to influence professional socialization. Major satisfaction (β=.183, p<.05) and organizational socialization (β=.502, p<.001) had an effect on professional socialization, and explaining 67.1% of the variance (F=23.383, p<.001). In other words, it was results show that higher levels of nursing students' major satisfaction and organizational socialization, the higher their professional socialization. Conclusions Based on the results of this study, research is needed to develop and apply programs to improve professional socialization for nursing students.