中文摘要：

知识型员工由于其地位和作用的特殊性，一直是企业竞争的主要对象，其流动率也一直较高。知识型员工流失在很大程度上是心理契约违背的必然结果，因此，重构和优化心理契约至关重要。具体而言，在招聘、入职、变动和离职四个阶段，企业应分别采取真实岗位预视、建立动态档案、加强沟通、及时补偿和离职面谈等措施，防止知识型员工流失。

英文摘要：

Knowledge workers are always in the centre of organizations＇ competition because of their particular status and function, and their turnover rate stands a high level. This paper first analyzes the trait and components of knowledge workers＇ psychological contract; then concludes its positive effect in the management of knowledge workers, and puts forward a dynamic developing model about the violation of psychological contract ; finally, some controlling measures about the loss of knowledge workers are summarized.