The tourism development of the 11 provinces along the Yangtze River Economic Belt has its own characteristics，and the development level is quite different. The “Principal Component Analysis Method” and “Tourism Cooperation Potential Model” were used to measure the tourism development level and inter-provincial tourism cooperation potential of the 11 provinces along the Yangtze River Economic Belt. The study found that the top five provinces in the Yangtze River Economic Belt are Jiangsu，Zhejiang，Shanghai，Yunnan，and Sichuan. Among them，the tourism development level of the lower reaches of the Yangtze River is in a dominant position；the cooperation between the middle reaches of the Yangtze River and other provinces is greater.