Purpose: This study aims to investigate the effects of professional autonomy (PA) and person-environment fit (person-job [PJ] fit and person-organization [PO] fit) on turnover intention (TI). Methods: We take a total of 1,133 professional social workers with formal educational background from the China Social Work Longitudinal Study 2019 as our sample and use structural equation modeling as our analysis method. Results: We find that an increase in person-environment fit is significantly associated with a decrease in Chinese social workers' organizational TI, and this relationship is mediated b...