Abstract: Taking a mine roadway in fault zone as background, based on the original support scheme,combining numerical simulation and field tests to optimize the space of bolting-grouting. The simulation software FLAC^2D is used to establish a numerical model, by contrast and analysis of the deformation and failure characteristics of surrounding rock under the condition of different support schemes,the supporting scheme,arranging three grouting bolt in roof, spacing of 1 300 mm and arranging one grouting bolt in each side,can control deformation and plastic zone development of roadway effectively,and the feasibility of the scheme is verified by field test.