Outdoor tourism is a new way of life for the people to move towards nature and pursue health, and the outdoor tourism industry is showing a booming trend of development. Delving into the value chain of outdoor tourism industry, this study explores the value the industry brings to the economic development, social stability, cultural inheritance, and ecological protection of ethnic regions in Sichuan. This article uses methods such as literature analysis and field research to find that the development of outdoor tourism industry in ethnic areas of Sichuan still faces practical difficulties such as weak industrial foundation, incomplete public service system, insufficient facilities and resources, and contradictions between natural resource protection and opening up. It summarizes the practical path for the development of outdoor tourism industry in ethnic areas of Sichuan: adhering to the green development orientation; expanding the supply of outdoor tourism products; improving the outdoor tourism consumption environment; optimizing the management of outdoor tourist attractions; improving outdoor tourism infrastructure; strengthening financial support and market supervision; improving service quality; innovating development path.