The comprehensive evaluation index system including 15 indicators from five aspects is constructed: resource base, economic factors, ecological environment, social culture and tourism support. Analytic hierarchy process and fuzzy comprehensive evaluation method are used to analyze the sustainable development level of rural tourism in Xiaochang County. The results show that in the criterion layer, the highest weight of resource base is 0.362, and the lowest tourism support is 0.104. The comprehensive score of the sustainable development level of rural tourism in Xiaochang County is 60.236. The development level of rural tourism in Xiaochang County is at the initial sustainable level, and the development potential is unlimited. On this basis, it is proposed to dig deep into the local tourism characteristics to drive the prosperity of rural industries; increase publicity efforts to build a rural tourism brand in Xiaochang County. Attach importance to the development of the sound and perfect supporting facilities of the rural tourism industry.The quality of tourism practitioners.The implementation of the main body of responsibility, and the improvement of the level of management planning to develop relevant countermeasures and suggestions for the sustainable development of rural tourism in Xiaochang County.