Objective To investigate work withdrawal behavior in clinical nurses and to explore the impact of underqualification, so as to provide reference for formulating nurse training programs.Methods A convenience sample of 909 clinical nurses were selected in the Ningxia Region and surveyed using a general data questionnaire, the Employee Work Withdrawal Behavior Scale and the Sense of Underqualification Scale.Results The median score of work withdrawal behavior was 20(P25-P75:15-26), and the median underqualification score was 6（P25-P75:4-8） among clinical nurses.Hospital level, gender, working department, love of nursing, job satisfaction and underqualification were factors affecting work withdrawal behavior, and among them, the sense of underqualification could explain 36.0% of the variance.Conclusion Clinical nurses′ work withdrawal behavior is at a low level.It is necessary to identify high-risk persons with the sense of underqualification, in an effort to help them improve themselves, relieve their sense of underqualification and reduce their work withdrawal behavior.