In this paper, an aircraft landing autopilot is designed using the nonlinear energy-based control method (NEM). This method provides the automatic landing by energy management idea. Using NEM the stabilization and tracking can be achieved by modifying the energy functions. The method is illustrated on an automatic landing system problem for a twin-engine civil aircraft, developed by Group for Aeronautical Research and Technology in Europe(GARTEUR). Further we provide physical interpretation of the control laws. A disturbance rejection and robustness analysis is also performed via numbers of simulations at extreme flight conditions. The proposed control laws behave well even under extreme flight conditions.