Abstract: Green transformation is an important part of promoting the high-quality development of the tourism industry. It is also a key move to vigorously cultivate the new quality productivity of the tourism industry. Taking the connotation analysis of the greening of the tourism industry as the logical starting point, a theoretical framework from the perspective of "technology-organization-environment" was constructed. The entropy weight assignment method, kernel density estimation and spatial variation function were adopted to reveal the spatial-temporal evolution pattern of the greening development level of the tourism industry in the Yangtze River Economic Belt (YREB) from 2012 to 2022. The dynamic QCA method was used to clarify the configuration promotion path. The results showed that: (1) In terms of temporal evolution, the greening level of the tourism industry in the YREB showed an overall improvement trend, increasing from 0.104 in 2012 to 0.166 in 2022, and the regional gap showed a dynamic narrowing trend. (2) In terms of spatial pattern, the green level of tourism industry in the YREB showed a U-shaped differentiation characteristic of "high in the east and west, low in the middle". The direction of "northeastern-southwest" became the main direction of the spatial difference of the green level of tourism industry. (3) In terms of configuration path, there were four modes for greening the tourism industry, among which "technology-government linkage", "technology-market linkage" and "multi-coordinated urbanization drive" showed regional differences in all regions of the YREB, while "multi-mixed drive" did not show significant regional differences.