Social contradiction adjustment is a complex social system engineering, need to mobilize all kinds of social forces, the use of all kinds of social resources, the formation of a sensitive and efficient working mechanism. Flexible and efficient social contradiction adjustment mechanism is of great significance to deal with the complex situation, improve the ability to resolve and deal with social conflicts, and to build a harmonious society. In this paper, the use of administrative management theory and social survey methods, to explore the current situation and characteristics of social contradictions in our country. It is pointed out that the improvement and innovation of social contradictions adjustment mechanisms include sound social contradiction early warning mechanism, improve the social public security prevention and control mechanism, reforming the mechanism for people's mediation, strengthen social psychological adjustment mechanism, establish social contradictions regulation of emergency mechanism and strengthen social contradictions regulation and supervision of assessment and accountability accountability mechanism. <<