Abstract:Landform is the most important natural environment element and it has profound effects on thelandscape pattern of land utilization.Ansai County of Shaanxi Province located in the loess hilly-gully regionwas selected as the special case to conduct the research on landscape pattern of land utilization under differentgeomorphologic types based on the principles of landscape ecology using ArcGIS software package.Resultsshow that the combinations of landscape types are dissimilar in different geomorphologic types.Meanwhile,the patterns of different landscape types are distinct in the same geomorphologic area.The same landscapetype distributed in the different geomorphologic areas is dissimilar.Generally,the landscape in the valley terrace area shows higher spatial heterogeneity and greater> 类> ? diversity and evenness indexes,followed by thelandscape in the loess ridge ravine area.In the loess hilly and valley area,the landscape for grassland with ahigher value of dominance index is the substratum element,surrounded by other landscape types.In theloess flat-topped ridge area,the shapes of landscape types are complex and irregular,and many plaques risewith obvious difference in size.