This article explores the problem of negative effect of resignation of core employees from scientific enterprise based on psychological contract theory and summary of references. It uses questionnaires to analyze the data and construct a model of negative effect of resignation caused by psychological contract violation. It also makes an analysis on resignation tendency and negative effect of resignation in two perspectives to provide a basis for reduction of the negative effect. Keywords.

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... logical contract; core employee; negative effect of resignation Technological enterprise is an important primary force to improve national innovation ability and scientific level, and belongs to intelligence-intensive enterprise that produces high-tech products, so it has a high demand on talents, especially the ones that master professional knowledge and core technology. 20% of employees in technological enterprise master the core technology in the enterprise and are able to create 80% of values and profits for the enterprise. They are called core employees. The core employees have a dominant position in the enterprise. Their resignations will bring significant or even destructive negative effect on the technological enterprise. The core employees play an irreplaceable role in the technical development of technological enterprise, and they also have many special features in values and psychological demand--they are very independent and innovative, as well as have a strong demand on self-realization and focus on achievement. Therefore, their relation with the enterprise is distinguished from that of other traditional enterprises with their employees. The enterprise cannot restrain them only by existing employment contract but paying more attention to their satisfaction with psychological contract.