On the basis of the theory, idea and method by Marxism, the theory of contractual truth, referred to western contractual theory, is composed in which the five chapters introspect the advantages and disadvantages of the traditional theories and the following subjects are discussed: (1) the traditional theories belong to "the discovery theory of the trut.

Analysis on the status and measures of staff psychological contract;

Probe into correlations between psychological contract theory and nursing human resource management;

Demonstration research on the relationship between psychological contract and employee satisfaction;

The construction of good psychological contracts in human resource management;

An Empirical Study on the Construct Dimensions of Managers Psychological Contracts in China;

Psychological contracts exists between employee and organization,which is understanding and expectation for each others responsibilities and obligations.

Develop psychology contract of personnel with hospital management;

The essence of psychology contract is modern organization and its members expectation of bodiless psychology.

Based on the significance of organizational and personal psychology,the psychology contract is introduced into public administration in China.

Discussion on the issue of accounting credit standing based on contract theory;

An Integration of Contract Theory and Capabilities Theory:A Quest for the Nature of the Firm;

Finally the paper uses institutional economics, sociology and contract theory to make such a theoretical analysis: In the age of information technology today, it is a wise choice that enterprises take seriously to their social responsibility.