Abstract: Bolting and shotcreting support technology is one of the main means to control the stability of surrounding rocks in mining engineering,and the application of numerical simulation technology makes the design of bolting and shotcreting support more objective by considering the interaction between roadway surrounding rocks and the bolting and shotcreting supporting body.It is scientific and reasonable to select the optimal scheme by comparing multiple support schemes.Based on the engineering practice of deep -150 m development roadway in Lingyuan Rixing mining company,bolting and shotcreting support is designed to strengthen support in local broken area,and three optimization schemes of support parameters are put forward.Through the simulation calculation of roadway excavation and support process by Flac3D software,the surrounding rock stress,displacement and mechanical characteristics of the supporting bodies of different optimization schemes with support parameters are obtained.The purpose of this paper is to provide theoretical basis and technical guidance for the optimization of roadway support scheme.