Soil nailing is an in-situ repair method by attaching steel rods. This research is theoretical in nature and is modeled using the geoslope program. Analysis using the geoslope program will be compared with manual calculations on unreinforced slopes. As for slopes with reinforced soil nails, the analysis using the geoslope program will be compared with manual calculations using the wedge method. In the manual analysis, internal and external searches are also carried out, to perform internal to and remove reinforcement, while externally it is carried out for shearing. The results obtained in this study are manual calculations of the fellenius method, which obtained SF = 1.174. Meanwhile, the analysis of the geoslope program using the fellenius method obtained SF = 0.916. For the calculation of soil nailing using the wedge method, SF = 1,519 and the geoslope program obtained SF = 1,485..