Results of the investigations on soil loss amount using the MUSLE (Modified Universal Soil Loss Equation) in the modification proposed by Banasik and Górski [1990] were presented in the work. In the investigations there were regarded daily sums of precipitation of height ≥ 20 mm in the years 2011–2014 from the weather station Obidowa. For determination of influence of daily precipitation on soil eroded from the investigated basin, simulation of the phenomenon regarding daily sums in gradation 5 mm. Daily precipitations, that occurred in the years 2011–2014 were analyzed as well. Simulated soil loss from the investigated basin fluctuated between 0,01 Mg for single rainfall amounting 20 mm and 36978,47 Mg for rainfall of 115 mm.