Abstract: Objective To understand the current situation of overqualification,job control,and counterproductive work behavior among senior clinical nurses,and explore the relationship between the three factors. Methods From June to September 2023,a survey was conducted on 332 clinical nurses using self-designed demographic information questionnaire,perceived overqualification scale,job-control perception scale and counterproductive work behavior scale,and the data were analyzed. Results The total score of perceived overqualification among 332 senior clinical nurses was （23.31±4.78）points,the score of job-control was （55.08±5.42）points,and the score of counterproductive work behavior was （56.81±7.33）points. Job-control was negatively correlated with perceived overqualification and counterproductive work behavior（r=-0.639,-0.732,both P<0.01）,while the perceived overqualification was positively correlated with counterproductive work behavior and its dimensions（r=0.573-0.623,all P<0.01）. The perceived overqualification had both significant direct and indirect effects on counterproductive work behavior of senior clinical nurses. The direct effect of perceived overqualification→counterproductive work behavior was 0.403（P<0.01）,and the indirect effect value of perceived overqualification→job-control→counterproductive work behavior was 0.017（P<0.01）,accounting for 14.98% of the total effect. Conclusion Hospital managers can individually match the appropriate post according to the characteristics and comprehensive ability of senior clinical nurses and conduct scientific management of human resources. To reduce the perceived overqualification and improve job control of senior clinical nurse,so as to reduce and prevent the occurrence of counterproductive work behavior in the organization.

Key words: Senior clinical nurse, Perceived overqualification, Job-control, Counterproductive work behavior, Mediating effect