County economy is a kind of regional economy with full local features and full functions. It is divided geographically by county administration，based on county district，guided by the market，optimizing resource allocation. It is an important part of the national economy. Sichuan is a province with a large population，and its output of the agriculture，forestry，animal husbandry and fishery is in the forefront of the country. In order to enhance the competitiveness of the county economy，narrow the gap with the developed areas，reinforce the bottom base of building a multi-point multi-polar pattern and implement the “moderate prosperity” program in a well-rounded way，research and development of the county economy in Sichuan has a special significance.