It sampl the 0~100 cm section of windblown soil and new silt land and silted tilth in the flood irrigation area of Gongwusu,and mensurated the soil nutrient content and grain size constitute,in order to analyze distribution characteristic of nutrient and grain size of the soil after silting up using the flood with high sand.As a result,available P content in the new silt land is 4.2 times than the original shape wind-blown soil,the same available K is 2.5 times,alkali-hydrolysable N is 2.4 times,whole N is 2.7 times,whole P is 1.3 times,organic matter is 3.3 times,and available K content comes to very high grade in the whole country soil census for the second time nutrient standard,available P comes to abundant grade.Through Leading the flood with high sand into the basin of the desert for silting up many times,when alluvium thickness exceed plow,the desert can becomes the high quantity farmland.It is a very valid approach to use the flood with high sand controlling sand and silting land for reducing the yellow river bed silted and controlling desert and developing farmland.