An assessment index system of land use suitability in the Shanghuang experimental area was established based on the characteristics of the area and the experts'advices,and the quantitative grade and weight of each index for the land suitability assessment were acquired using expert scoring method.The experimental area was divided into 185units,and the spatial and attributive database of the 185units were established using ArcView 3.2software.The land use suitability of each unit was analyzed using spatial overlay analysis function and comprehensive index method.Results showed that the largest area in the experimental area was the land suitable for grassland,about 419.04hm2(52.31%);the second,for agriculture,about 195.35hm2(24.39%);and the smallest,for woodland,about 46.8hm2(5.84%).the area of the land suitable for both grassland and woodland was 139.86hm2(17.46%).Result from the assessment could provide a data basis for determining the best land use plan of the experimental area.