To improve the comfort and handling stability of aircraft tractor, a quarter body model of aircraft tractor is built, and a model reference adaptive control algorithm is applied to the active suspension of the vehicle. General skyhook control force is added to the car body, and the reference model is obtained by optimal control theory, which is better than passive suspension no matter in ride comfort and handling stability. Using Lyapunov stability theory to solve adaptive adjustment rules can make the dynamics of controlled model approach the dynamics of reference model. The simulation results show that model reference adaptive control can obviously improve the performance of the suspension system, and this algorithm has self-adaptability to the changes in the suspension parameters.