County characteristic industries are important part of county economy.The development of county characteristics industries is an important way to grow county economy and solve the “three rural” issue.Affected by many factors, China’s vast western region is still relatively backward.The development of the western county characteristic industries is the concrete embodiment of practicing the scientific concept of development,has great significance in implementing the western development strategy, in promoting the scientific and harmonious development by kaps of the western regional economy, and in corostructing a welloff society.This paper discusses the meaning, characteristics and development cycle, development mechanism, and development trend of characteristic industry.Aiming at the existing problems of the county industrial development of the western region, according to their resource advantages, this paper proposes the general strategy and countermeasure of developing county characteristic industry in western region.