Abstract: According to the relationship between tourism and regional economic development, the evaluation index system of coordinated development level between tourism and regional economy is constructed, and the weight of each index is calculated by entropy weight method, and then the comprehensive evaluation value of regional economy and tourism development is calculated. According to the coupling coordination model, the coupling coordination value is calculated, and the efficiency rating DEA model of the coordinated development of regional economy and tourism industry is constructed. An empirical analysis of the coordinated development of tourism and regional economy in 36 major cities in the Yangtze river economic belt in 2016 is conducted. The results show that Shanghai and Ezhou are effective for DEA,and other cities are less than 1, indicating that most of the cities in the Yangtze economic belt are not effective for DEA, the level of coordination efficiency between regional economy and tourism development is low, and the mode and level of tourism development have not yet developed to a mature stage. The situation that the eastern areas of the Yangtze river economic belt zone are developed and the development of the central and western regions is relatively backward already exists. The central and western regions are rich in tourism resources and can use the sound development of tourism to drive regional economies and narrow regional economic differences.

Key words: regional economy, tourism, coordinated development efficiency, DEA method, Yangtze river economic belt