According to the performance of China's environmental policy for years and the perspective of market oriented reform in China in future, China's environmental policy should transit from the "style in governmental direct control"into "style in social counterweight",namely "transition in environmental policy".

There are two patterns to restrict government operational mechanism: one is to restrict authority by authority,the other is to restrict authority by society,namely social counterweight.

Pluralistic democratic theoristsTocquevelle and Robert Dahl proposed and developed the theory of the social counterweight about the power.

The poverty of these farmers have reflected the poor situation of China s social balancing system and the shortcomings of related law which is and important reason for their poverty.

In modern society,political life is one of the most important areas aimed to build up social balance.

The paper introduces the concept of game with constraint condition,and illustrates the consistency of the corresponding and their extended games under games with constraint condition,and indicates that methods of proving Nash equilibrium existence theorem I and II are similar,and presents and proves the social equilibrium and its existence theorem.

The harmony development of education and social goal can be realized only when education demand and supply reach social equilibrium.