With the intensification of global climate change and human activity,soil erosion is more serious and has become one of the biggest obstacles to regional sustainable development.Based on LISLE model and UIS spatial analysis technology,the quantity of soil erosion was estimated in Dabie mountain area in Anhui Province.Selecting soil nutrients,soil water,sediment retention-siltation and the deserted land loss as the index of economic losses,the economic loss of soil erosion in Dabie mountain area of Anhui Province was as sensed using the methods of replacement cost,recovery cost,shadow engineering and so on.The results indicated that the modulus of the average soil erosion in Dabie mountain area in Anhui Province was 2443.4t/(km²·a) in 2007,and the total amount of soil erosion was 2.29 X 10⁷t/a. The highest soil erosion were Jinzhai County and Yuexi County,having 7.62 X 10⁶t/a and 5.42 X 10⁶t/a,respectively.Seeing from the spatial distribution,the more serious soil erosion was mainly concentrated in the western region while slight soil erosion was in the northeast and southern. The total amount of economic loss of soil erosion was 920.528 million yuan in Dabie mountain area in Anhui Province.The value of nutrition loss was the biggest with 825.578 million yuan,accounting for 89.7%of the total soil erosion economic loss. Sediment loss was 47.342 million yuan,accounting for 5.1%.Economic loss of Jinzhai County was the biggest with 372.663 million yuan,having 40.18%of the total economic losses.Then it was Yuexi County,accounting for 23.54%.The smallest is Shucheng County and Tongcheng City.