Aiming at the phenomenon of swash plate angle fluctuation caused by plunger impact on swash plate in variable displacement test of asymmetric pump prototype,and the error problem of control system model derived from theory,a robust RBF network adaptive sliding mode algorithm was proposed to make variable displacement anti-jamming control.Asymmetric pump valve plate has three different series of flow distribution window,the asymmetric impact force on the swash plateis produced by the plunger through the flow distribution window could be regarded as interference signal.Through Simulation X and Simulink co-simulation,swash plate swing angle response characteristics of conventional PID control,conventional sliding mode control and RBF network adaptive robust sliding mode control were compared under the action of variable resistance moment at 40 Hz.The simulation results show that by using RBF network adaptive robust sliding mode control,the plunger chamber pressure peak and swash plate swing angle pulsation are reduced by 5% and 39% respectively relative to the PID control,and by 2.51% and 4% respectively compared with the ordinary sliding mode control.The fluctuation of the flow is consistent with the swash plate swing angle.The anti-jamming control algorithm improves the dynamic response characteristics of the system and weakens the jitter.