Abstract:When working in Zhejiang province, Xi Jinping examined the new changes and characteristics of Zhejiang's economy and society, and he carried out a series of vivid practice on the development of trade union undertakings at the provincial and regional levels from the perspective of strengthening the Party's ruling capacity and consolidating the class foundation. This is the practical basis for Xi Jinping to promote the reform of the national mass organizations and the development of trade unions since the 18th National Congress of the Communist Party of China.