Sustainable development level in rural China based on osculating value method

This paper expounds the theoretical basis of rural sustainable development, sets up evaluation index system for rural sustainable development level in China, and uses the osculating value method to evaluate the rural sustainable development in cities, autonomous regions and provinces of China. They are divided into 3 grades of A, B and C according to the evaluation result. Finally, we analyze the causation of the differences of rural sustainable development among cities. autonomous regions and provinces in rural China.