Study on economic strategy of the sustainable development in mountainous areas of Western China

To accelerate the economic development of mountainous areas of west China, and achieve its sustainable development plays an important role in improving the ecological environment, coordinating the development of region economy, keeping the nationality union, and consolidating the country's security. Taking the Longnan mountain area in Gansu Province for example, this article analyses the problems that exists in its sustainable development,puts forward its economic development strategies of sustainable development and some suggestion, in order to promote the development of Longnan mountainous area and mountainous areas of west China.