Abstract: This paper analyzes the social structure in the form of "pyramid", arg uing that the present social structure is not a reasonable, fair, liberal societ y of a flowing model, lacking a valid mechanism in societal integration. The aut hor suggests that a foothold on social justice can help to set up a harmonious s ociety of the positive motion by molding the symmetrical environment of informat ion, breaking the systematical barracks, raising the public financial management ability, strengthening transfer payment, and establishing the social guarantee system.