Regionality is one of important characteristics of geography. The study, based on regional otherness, using contrastive method, simulated traits of soil erosion of all kinds of artificial physiognomy formed by engineer ing measures during construction period in both Liaoning Xingcheng city and Guizhou Weining county. The result showed, the regional otherness of upper natural environment both in south and north, resulted in obvious otherness of runoff and sediment yield of artificial physiognomy, which embodied that the time of runoff and sediment yield in north is late for that in south, but the quantity of runoff and sediment yield in north is less than that in south, which represented obviously regional otherness.