Abstract:Based on the technologies of 3S(RS, GPS and GIS) and universal soil loss equation(RUSLE), soil erosion and its spatial distribution in Yulin City in 2001 and 2010 was calculated and analyzed. The results showed that mean soil erosion rate was 4411 t/(km2·a) and annual average sediment yield was 1.93×108 t in Yulin City in 2001, mean soil erosion rate was 6237 t/(km2·a) and annual average sediment yield was 2.72×108t in 2010. During the period from 2001 to 2010, there was an obvious spatial difference between various regions in the soil erosion change, the soil erosion intensity changed from medium to high in Fugu, Shenmu, Yuyang, Hengshan, Jingbian, Jiaxian and Zizhou County(District), which indicated that soil condition deteriorated continuously. While, the soil erosion intensity changed from high to low in Dingbian, Mizhi, Wubu, Suide and Qingjian Counties, showing soil and water loss was effectively controlled.