The boundary layer flow of a fluid past a semi-infinite rough plate embedded in porous medium is investigated. The transformed non-linear ordinary differentional equation describing the problem is solved numerically using the shooting technique. The effects of permeability parameter ) (M , inertia coefficient parameter ) (N and the roughness parameter ) (R w on the velocity are shown on graphs. Numerical data for the skin fraction have been tabulated for various values of N, M , and R w