In this work, a method for implementing a ground model of commercial aircraft is proposed to support desktop simulation of the autoland control algorithm. Firstly, a ground support force calculation model is established by considering the buffers as equivalent spring-damping systems and the wheels as equivalent spring systems. Then, a model for calculating ground friction forces and triaxial moments is developed to accommodate the needs of nose wheel turning and main wheels braking. Finally, the effectiveness of the proposed aircraft ground model for autoland control is verified through a numerical simulation.