The theory of Social Control is the core of idea of sociological jurisprudence of Pound. Based on his interest doctrine, interest is divided into personal interest, public interest and social interest, and sacrificing the least interest to achieve the maximization of interest is treated as the standard of conflict of the interest. The idea of Social Control was proposed during the period that Monopoly Capitalism Country intervened the social and economic life. Pound's theory of Social Control is valuable for the rule of law for China at the present stage. A country should control people’s instinct of self-expansion and the power of government; a country should recognize the limitations of law on social control and strengthen moral and spiritual civilization. Whether it is legislative or judicial, the theory of Interest is a very good guideline to reach the purpose of legal control on society.