This paper presents the design of a digital anti-skid break controller. The control algorithm is obtained via discretization of continuous-time slip-velocity controller and pressure-bias-modulated(PBM) type antiskid break controller. The algorithm, implemented with software, thus is easy to tune and modify. As a result of dealing with disturbances, which may be encountered during aircraft's breaking, the digital controller can provide the stable and reliable performance. The results indicate that the digital controller improves the aircraft brake performance effectively and enhances the system robustness.