The essential characteristic of labor relationship is the contractual in the market economy.The harmony and stabilization of the relationship plays a basic part in promoting the harmonious development of the economy and society.Vindicating the legitimate benefit of the employers,The Labor Contract Law emphasizes particularly on the legitimate benefit of the laborer,who are at a disadvantage of the labor relationship.It aims at achieving a balance of the two sides in force and benefit,and finding the best combination of the benefits of them.