This study aimed to investigate the relationship among the grit of professional dancers, protean career attitude, and subjective career success. Collected through a purposive sampling method, 330 questionnaires of dancers were used for the final analysis, and the results obtained through validity analysis, reliability analysis, frequency analysis, correlation analysis, and regression analysis are as follows. First, it was found that the grit of professional dancers had a significant effect on protean career attitude. Second, it was found that the grit of professional dancers had a significant effect on subjective career success. Third, it was found that the protean career attitude of professional dancers had a significant effect on subjective career success. The result of this study suggests that dance organizations should strive to improve the level of not only dancers but also the entire dance group by strengthening support for the career development of dancers for the protean career attitude and subjective career success of professional dancers. The expansion and application of grit education to improve subjective career success of professional dancers is also required.