Abstract: For the problem of supporting difficulty of crushing roadway surrounding rock at high stress island coal face, according to the condition of return airway of Guoyang No.1 Coal Mine, the paper analyzed the failure mechanism of roadway and proposed the optimization scheme of bolt and high-strength anchor cable combined support. The supporting effect, under original and optimization supporting scheme, was compared by using the numerical simulation software FLAC^3D. The results show that relative convergence of roadway roof and floor is reduced by 23% and 63%, respectively, and the convergence of two-side is decreased by 25% and 60% respectively during excavating and mining at 81204 face return airway after the combination support.