Using the NCEP/NCAR reanalysis data from January 1 to December 31 on 2000,the wind energy of Jiangsu Province was simulated by the Regional Climate Model3(RegCM3).The comparative analysis of the simulated and observed data demonstrates that the spatial distribution of simulated wind field can well reflect the spatial pattern of the observed,and especially,the fine resolution simulation can more realistically reproduce the feature of winds over special terrains.The results of wind simulation show:1)The surface mean wind energy density of Jiangsu increases with height from 60-100W/m² on the ground surface to 320-380 W/m² at the height of 200m.2)The wind energy near the coast is larger than that in the inland,and the wind power in the central-south of Jiangsu than that in the north.Moreover,the availability of wind power above Taihu Lake and other lakes is more sufficient than nearby lands.3)The gradient of wind power is sharp between land and sea at the lower levels,while it becomes gentle at the higher levels.As a result,this paper suggests that the best location for building wind power stations is the coastal regions in the central-south of Jiangsu Province.