One basic method for the soil and water conservation and ecologic environment constructions in the loess plateau, especially the loess hill and gully area is to return the hillside cultivated land for forestry and grassland. The key issue to execute the project is how to rapidly learn about the current land use situation of the area. The traditional statistical method and on map measurement method are unable to meet the requirements of scientific high efficiency. Combined with the topographic features of the loess hill and gully area, the working process and key technologies of using GIS technology are studied and explored to realize the rapid inspection and checking on the land use situation so as to provide valid methods and basis to realize the automatization and standardization of scientific investigation, planning and management for the land resources in the whole area.