Through field surveys and remote sensing dynamic monitoring,reversible processes of oasis and desertification in the arid oasis region were studied by proceeding from men-earth relationship theory and taking land use change as a breakthrough point.On the basis of field survey data and evaluation of remote sensing image classification,dynamic and spatial changes in both land use and land cover in the region were analyzed.It was found that abused water and soil resources,increased population,changes in national policies and institution and other factors led to sharp contradictions between men and the earth.This has the greater impact on local economic development and the achievement of sustainable development.Accordingly,it is proposed that the only way to prevent desertification and restore oasis is to coordinate man-earth relationship and strengthen regional geographic building.