Aiming at the asymmetric deformation of deep roadway within inclined rock strata and the ineffective control of surrounding rock deformation under symmetric support, the stress analysis of roadway surrounding rock was combined with Qujiang Mine engineering practice to build a stress model of deep roadway within inclined rock strata by applying UDEC discrete finite element simulation software. Then the stress model was investigated by respective numerical simulation of nonsupport and traditional support after roadway driving. According to the field test and simulation result, the theory was put forward that roadway stability can be guaranteed by enlarging the surrounding rock stress load-bearing ring with the combination of asymmetric intensified support and whole section anchor cable support. Based on the numerical simulations and engineering practice, it was proved that of the improved support plan effectively decrease roadway surrounding rock deformation.