ABSTRACT This study aims to explore the relationship between overqualification and turnover intention. Besides, the mediating effects of professional identity between the two dimensions of perceived overqualification and turnover intention are investigated. In addition, the study explores whether the emphasis on one's reputation has a moderating effect. Data were gathered using an online questionnaire. The sample size was 278 with a valid response rate of 85%. The study's results indicated that perceived overqualification and work mismatch are negatively correlated with workers’ turnover intention. Professional identity has a mediating effect between perceived overqualification and turnover intention. The emphasis on one's reputation has a moderating effect that strengthens the relationship between professional identification and turnover intention. The results address the research gap regarding perceived overqualification and may serve as a reference for subsequent studies on the identification and social orientation of workers.