Tourism industry can boost the development of county industry with the basic support of a certain level of economy. How to achieve a balanced development between tourism industry and county economy is also a concern of the coupling development. A case study of Yang Shuo county, though co-integration analysis, error correction model and coupling coordination analysis, studied the coupling development between the tourism industry and economy of Yang Shuo county in the course of 2004 to 2018. The study showed that the relationship between tourist industry and economy is a long-term and balanced one, and short-term fluctuation of tourism industry and error correction terms can lead to a short-term fluctuation on economy; the study saw a turn of status of tourism industry and economy from a mild disorder to a favorable one.