“Big Mediation” is one of the social governance initiatives explored and innovated on the basis of traditional mediation to prevent and solve disputes，maintain social harmony and stability，guarantee the good and fast development of economy and society. “Big Mediation” has been introduced and developed for over ten years and has shown great vitality in local governance. Nevertheless，due to difference in development modes and effectiveness in various areas，issues such as the development directions，modes，and whether unified development mode can be formed are worthy of in-depth studies. Sichuan Province is a key region for innovative practices of “Big Mediation” work system in China，and Meishan has been selected as the birthplace and model city of the “Big Mediation“work system of Sichuan Province. It always adheres to exploring and innovating，continuously achieve new breakthroughs and have significant impact in the Province and the country. Reflection and suggestions on promoting the work norms and scientific development of “Big Mediation” under the new circumstances in combination with the lively practices in Meishan is vital to theoretical development and practical innovation.