In the Loess Plateau with broken topograhpy and steep earth's surface, the rain redistribution always takes place on hillslopes. Based on field studies, some conclusions have been drawn by us:1, The relationship between received precipitation on slope and steep degree is expressed by equation P,=Pcosasins [f(1)〕2, The critical value of the unredistribution of precipitation on hillslope is enumerated:7°-7mm, 15°-4.3mm, 27.5°-3.2mm,30°-2.8mm;3, Change law of soil-moisture storage from hilltop to the slope base= In the dry season, the most soil-moisture storage is situated in the central section of hillslopej after the rain season the soil-moisture storage is increasing little by little down the slope.