Abstract: The ecological environmental protection and high-quality development of the Yellow River Basin have risen to a major national strategy. It is of great practical significance to explore the coupling and coordination between tourism and eco-environment ,which promotes regional high-quality development. The index weights were determined through SEM, and tourism and eco-environment system were established. Combined with coupling coordination and interactive coercion model explored the coupling and coordination spatial-temporal evolution and interactive stress from 2008 to 2017. The results showed that: in timing changes, the coupling level was high（>0.8） and the fluctuation was not obvious, the overall coupling coordination degree showed a “W”-shaped fluctuation in a small range, but the relative lag of the tourism development evaluation index made the degree of coupling coordination in a barely coordinated state; in terms of spatial evolution, there were obvious differences between upstream, middle, and downstream, which is manifested as a spatial pattern of “high in the southeast and low in the northwest”. The degree of coupling coordination transited from downstream intermediate coordination, midstream primary coordination to upstream imbalance. The relative development types had obvious spatial differentiation. The downstream was the lagging type of tourism development, and the middle and upstream was the lagging type of ecological environment; two systems also conformed to the double exponential function model, and there was an interactive stress relationship between them. Provinces can strengthen regional cooperation in tourism environmental protection and optimize the structure of tourism development to promote the coordinated and high-quality development of the tourism industry and ecological environment in the Yellow River Basin.