By using the data of job security,organizational commitment,and perceived procedural justice collected from a questionnaire survey on employees in manufacturing companies and by correlation analysis and hierarchical regression analysis,this paper examines the impact of job security on organizational commitment and the moderating effect of perceived procedural justice in this progress.

author has distinguished labour contract, contract of employment, labour service contract from concept, legal nature , enable reader s understanding the relation between the three better.

In classical enterprises and some modern shared company, it s a fact that capital employs labor.

On assumption of “labor-employment capital”;

Right Construction of Enterprise in Knowledge Economy: Can Fundamental Changes from Capital employment Labor to Labor employment Capital Take Place;

The owner of human capital can t become the real bearer of enterprise risks;knowledge economy can t lower the importance of material capital;The enterprise of "labor-employment capital" isn t the best enterprise system.

To this, historians basically consider that it was hire.

So, it is a basic choice that inttelligence hires capital for the disposition of enterpriese ownership.

Labor contract is the result of the socialization of employment contract in Roman Law.

Discussion of link between labor and employment relationship——Unified adjustment model of labor law;

The current study argues that employment relationship perceived by employees changes along with time.

From a legal perspective,some of the general sense of labor relations;and another belonging to the civil part of the employment relationship.