Abstract: Land use function reflects the change of land use pattern and intensity to a certain extent. The paper takes the hinterland of the Three Gorges Reservoir area Fengjie County and Wushan County as the study areas, analyses temporal and spatial evolution of land use function, and explore the natural factors such as altitude, slope and lithology factor, as well as the coupling driving mechanism of population, road and other social and economic conditions, to reveal the theoretical and practical significance of land use function using spatial autocorrelation, hot spot analysis and other research methods based on multitemporal remote sensing image data of 1986, 2000, 2007, 2015. The results shows: 1. In terms of the quantity of land use function, the living land shows an increase, while the production function decreases, and the ecological land tends to be stable. On the change of land use function area, the three functions shows a stable development; 2. As far as the distribution is concerned, the production function is changed from the large to the small and the gathering area is reduced; The clustering of life function continues to increase, and the area is enlarged; The ecological function is changed from agglomeration to decentralization with an increase area; 3. As for the driving mechanism of land use function, natural factors, including elevation, slope and lithology, influence the spatial variation of the three function.