Abstract: Objective This project aims to study the soil physicochemical properties of degraded alpine grassland and soil nutrient characteristics in Bayinbuluk in the hope of providing a theoretical basis for rational utilization of grassland degradation.MethodUsing conventional soil physical and chemical detection method to analyze soil organic matter, total nitrogen, total phosphorus, total potassium, alkali-hydrolyzable nitrogen, available phosphorus, available potassium, pH, soil moisture and bulk density index in Bayanbulak degraded grassland.ResultWith degradation degree aggravated, the contents of soil organic matter, total nitrogen, total phosphorus, available phosphorus and soil water content in the different layers of soil (0-30 cm) declined, but soil bulk density and pH showed a trend of increase.Compared with non degraded areas, the content of soil organic matter, total nitrogen, total phosphorus, alkali-hydrolyzable nitrogen, available phosphorus and soil water decreased between 25.22;-31.96;, 37.69;-48.44;, 28.00;-28.98;, 35.53;-52.47;, 33.89;-44.84; and 35.44;-57.62; in each soil layer (0-30 cm).The available potassium in the soil layer of 20-30 cm increased remarkably after heavy degradation, which was 1.96 times higher than that of the non degraded land.Total K content showed no significant difference (P>0.05).ConclusionSoil nutrient contents decreased significantly in different alpine grasslands in Bayanbulak.