Abstract: By the combination of practical project,this paper compares the two existing stability analysis software.The results showed:Geo-Slope/w and FLAC numerical simulation analysis of the slope stability achieved relatively consistent results,and they are both more effective analytical tools.Two analytical methods used in combination,in each of the analysis results, compare proven,and the results of targeted data to the amendment will be more comprehensive and objective conclusions.So the combining of the two methods for the analysis of slope stability has a certain reference value.