We also take into account the relation of wind direction and hilly aspect to calculate the wind accurate distribution in chongqing for different wind direction . the networkware ' s hilly aspect date is calculated with the chongqing dem ( 100m 100m ) . it can provide base datum for chongqing agriculture region compartment 由重庆市1 : 25万dem计算了100m 100m网格点的坡向,由此计算了不同风向下的精细风速分布图,为重庆地区农业气候区划提供可参考的基础资料。