Previous research show that person-organization fit has a predictive effect on turnover intention through job satisfaction as a full mediator.In fact,the effect of job satisfaction on turnover intention has been found various in term of individual’s cognitive style.Thus,the current research aimed to examine the possible buffering effect of cognitive hardiness,a cognitive style with which individual can effectively cope with daily stresses,involved in the process.A total of 395 working employees participated in the questionnaire.Data were analyzed using hierarchical regression,aided with bootstrapping methods.The results showed that:(1) Person-organization fit affected turnover intention completely through the mediation of job satisfaction.(2) The mediation of person-organization fit on turnover intention through job satisfaction was moderated by employees’ cognitive hardiness,and the moderation effect only took place in the latter stage of the process.The findings not only extended the theoretical framework of person-organization fit to turnover intention with a moderated mediation model,but also provided suggestions to managers that it is important to assess and train employee’s cognitive hardiness.