To explore effects of liquorice(Glycyrrhiza Uralensis) plantation on soil erosion, texture and contents of organic carbon(OC) and total nitrogen(TN) through measuring vegetation coverage, height above-ground biomass and topsoil(0-5 cm) erosion, texture, nutrient conservation under cover, analysis was done of the liquorice vegetation for characteristic indices and of the topsoil texture and nutrients. Results showed that with the liquorice vegetation growing on, coverage, height and biomass of the vegetation, and silt+clay, very fine sands, OC and TN in the topsoil all significantly increased, while wind erosion significantly decreased(P＜0.05). Correlation analysis indicated that characteristic indices were significantly and positively related to soil silt+clay, very fine sands, OC and TN contents(P＜0.01). Regression analysis demonstrated that for every 1g of increase in biomass, the content silt+clay, OC and TN in topsoil increased 0.048 9 %, 0.012 g/kg and 0.001 1 g/kg; for every 1% of increase in topsoil silt+clay, the content of OC and TN increased 0.220 3 g/kg and 0.018 5 g/kg, respectively. Obviously, the adoption of practice of planting liquorice on farmland of wind erosion of Northwest China, may reduce wind erosion of the surface soil, and increase the amount of fine particulate matter and hence content of OC and TN, and soil fertility could be recovered and improved.