Government, enterprises and consumers are economic agents. The government's economic power not only includes the direct participation in the market trading activities, but also reflects in the economic administrative regulation of indirectly interfering with economic issues; economic power of the enterprise is embodied in the possession of resources and elements; consumer's economic power reflects through its own resource endowment to influence and control the distribution of labor elements and the choice of goods consuming. The allocation of resources is determined by the power game of each economic agent, and the equilibrium of the game reflects the boundary of economic power. The inequality of the economy entities' power will inevitably lead to a deviation from the Pareto equilibrium and reduce the total welfare of the society.