The flow of an incompressible, constant density micropolar fluid past a porous stretching sheet is investigated. The governing boundary layer equations are transformed into a numerically equivalent system of nonlinear ordinary differential equations. The resulting equations are solved numerically using a globally convergent homotopy method in conjunction with a least charge secant update quasi-Newton algorithm. The flow pattern depends on three nondimensional parameters and a suction (on injection) parameter A. A comparison between the A = 0 flow behavior representing an impermeable sheet and fluid flow behavior for the porous sheet (A ≠ 0) is presented with the numerical results illustrated graphically. © 1986.