Erosion that exceeds the normal threshold can cause damage to the environment. The reduce of physical properties of soil is a result of erosion. The USLE method is an empirical model that can predict the amount of erosion in a simple way. The purpose of this study was to determine the level of erosion hazard that occurs in the Tanralili sub-watershed. The benefit of this study is to find out areas that are experiencing severe erosion so that a recovery plan can be made for eroded soils to prevent even greater erosion. Erosion is calculated using the USLE (Universal Soil Loss Equation) model. There are several variables used in the calculation, which are the rainfall erosivity factor, the soil erodibility factor, the topographic factor, and the cropping management factor. In looking at vegetation cover, a survey method is used in the field. The analysis used in this study is descriptive and spatial analysis. Very high erosion occur in almost all of the Tanraliili sub-watershed, about > 480 tons/ha/year which occurred on slopes 15-45%. Heavy erosion occurs in the west with a total amount of 180-480 tons/ha/year. The total erosion that occurred in 2018 was 844790.2 tons/ha/year.