Abstract:The Communist Party of China is the advocator and practitioner of the shift away from outdated socia practices. In order to address problems in different historical periods, effective practices of a shift away from outdated social mores has been carried out. Liangshan Prefecture is a national impoverished area. In the national poverty alleviation strategy, a shift away from outdated social mores is a key method, which demonstrates the Communist Party of China′s governing value of achieving "common prosperity". This article reviews the practice of a shift away from outdated social mores in poverty alleviation in Liangshan, especially during the decisive period of building a moderately prosperous society in all respects, when the party committees and governments at all levels as well as all cadres and people were inspired by the spirit of the 19th National Congress of the Communist Party of China and the spirit of Xi Jinping′s inspection of Liangshan and launched the initiative of "shifting away from outdated social practices and promoting new civil praxis". All lessons and experience from these efforts will provide valuable references for the consolidation of poverty alleviation outcomes and the promotion of the rural vitalization strategy.