As China develops into a new stage, the reform has entered a crucial stage and the deep water area, the profound changes in the economic system, profound changes in social structure, profound changes in the pattern of interests, profound changes in ideology. This unprecedented social change in the excitation of social vitality, so that the masses to share the results of reform and development at the same time, it also brings a series of new social contradictions and problems, the petition work put forward new challenges. In petition high prone prone today, city of Sichuan district innovation implementation "315 work for the masses", focus on the petition work into the orbit of the rule of law, and promote the sustained and healthy development of the region's petition situation has improved and the economic and social, for letters and visits of the rule of law should focus on the practical value and the theoretical sample significance. In this paper, in order to achieve the "315 mass work law" in the background, the main practice, the results and theoretical analysis and summary, in order to provide a better reference for the construction of the rule of law and order. <<