Abstract: SWOT analysis has been widely used in tourism analysis. Langzhong city, as one of the four ancient cities in china, there is still a huge development space for its tourism resources. In order to make full use of the tourism resources in Langzhong, this paper made a comprehensive analysis of the advantages, disadvantages, opportunities and challenges of the development of tourism resources in Langzhong city using investigation method and literature research method. The results showed that Langzhong tourism resources had many advantages in terms of location, government support and so on, but there were many problems in the management strategy and infrastructure. Finally, some suggestions were put forward about applying for the world cultural heritage and the establishment of related tourism routes, which can provide a strong reference for the future development of tourism in Langzhong city.