Purpose: This study was undertaken to investigate the degree of career attitude maturity and its influencing factors for nursing students. Method: The subjects were 201 nursing students from two colleges located in Gyeonggi-do. The data analyzed by using SPSS-WIN program. Results: Career attitude maturity showed a significant positive correlation with self-esteem (r=.567, p=.000), rational decision-making (r=.241, p=.00I), and a negative significant correlation with dependent decision-making (r=-.423, p=.000). In addition, self-esteem, dependent decision-making and rational decision-making were significant predictors to explain career attitude maturity (39%). Conclusion: It is necessary to develop an effective intervention program to improve nursing students` career attitude maturity considering these findings.