Abstract: Under the background of the national ecological civilization strategy, It is great significance to explore the relationship between the intensity of tourism resource development and ecological capacity for the sustainable development of tourism. Took 11 provinces and cities in the Yangtze River Economic Belt as an example, according to the statistical data of 2009-2018, used entropy, super-efficiency DEA, coupling model and other research methods to deeply explored the relationship between tourism development intensity and ecological capacity and the degree of matching, and used GIS geographic software analyzed the spatial heterogeneity of the coupling degree of tourism resource development intensity and ecological capacity. The research finds that: （1)The evolutionary trajectory of tourism resource development intensity in 11 provinces and cities in the Yangtze River Economic Belt generally shows the trend of “rise-down-rise”. However, during the study period, the development intensity of tourism resources in all provinces and cities showed an overall growth trend. （2)The ecological capacity of the Yangtze River Economic Belt has gradually been strengthened, and its value has increased from 0.692 in 2009 to 1.169 in 2018.(3）During the sample period, the development intensity of tourism resources and ecological capacity are extremely coupled. There is strong and stable relationship between the two, and the coordination degree of the eastern Yangtze River Delta is significantly better than that of the western Yun-Gui plate. There is a coupling and coordination relationship between the development intensity of tourism resources and ecological capacity in the Yangtze River Economic Belt, and the interactive development of tourism resources development intensity and ecological capacity is in a highly matching stage, which is conducive to the sustainable development of the tourism industry.