中文摘要：

采用JD—R模型探讨了职业胜任力在工作要求-资源模型中的作用。结果表明：（1）职业胜任力弱化了工作要求和情感衰竭之间的正向关系；（2）职业胜任力正向影响工作投入；（3）职业胜任力在工作资源与工作投入之间起中介作用。本研究启示可通过提升员工的职业胜任力，促进员工的工作投入并缓解职业倦怠。

英文摘要：

This study mainly investigates the mediating effect and the moderating effect of career competencies in the Job Demands-Resources Model （JDR Model）. Career competeneies are a kind of knowledge accumulation （including knowing why, how and whom） which influences employee careers. The basic assumption of the JDR Model is that every work environment is characterized by occupation specific job resources and job demands, and includes two processes for the development of burnout. First, long-term excessive job demands from which employees do not adequately recover may lead to sustained activation and overtaxing, eventually resulting in exhaustion. Second, job resources lead to increased levels of motivation in the tbrm of work engagement （Demerouti, Bakker, Nachreiner, ＆ Schaufeli, 2001）. Previous studies have shown that personal resources may act as a mediator in motivational processes, and can stimulate employees＇ work engagements （Xanthopoulou, Bakker, Demerouti, ＆ Schaufeli, 2007）, and may also act as a moderator in health impairment processes, and can reduce burnout. Career eompetencies may be expected to act in a similar way as personal resources in stimulating employees work engagements and reducing emotional exhaustion in the JDR Model （Akkermans, Schaufeli, Brenninkmeijer, ＆ Blonk, 2013）. Based on the JDR Model and conservation of resources theory, our focus is to investigate the mediating and the moderating effects of career competencies in the JDR Model. 201 employs were measured with the professional competence measurement scale, the questionnaire of career development, the Job Content questionnaire, the questionnaire on the experience and assessment of work, the MBI - GS Scale and the Utrecht Work Engagement Scale. The Mplus and SPSS were used to analyze the data. The results showed that： （1） Job demands statistically significantly affected emotional exhaustion; and career competencies acted a moderator on the relationship between job demands and emotional exhaustion（β