Starting from the psychological contract theory,the article states the importance of the psychological contract management to knowledge employees in public hospitals based on an in-depth analysis of knowledge employee's characteristics.It sets forth the operating strategies of psychological contract in human resource management,which are concluding psychological contract objectively,dynamic adjustment of psychological contract,guiding psychological contract by culture.Besides,the article also proposes the total management of psychological contract to prevent the breakdown of the psychological contract to improve the level of human resource management in public hospitals.