Abstract: AS the engineering background of how to control the stability of roadway roof and floor in some coal mine for this paper,using FLAC^3D numerical analysis software,the process of roadway excavation was simulated,under the condition of five different supporting scheme,then the deformation and plastic zone distribution of the surrounding rock in tunnel were comparatively analyzed.Finally,the appropriate supporting scheme was determined,and get good test on site.In this paper,numerical analysis method and conclusion about how to choice the appropriate supporting scheme can provide a reference for the similar problem.