In order to overcome the problem of presence of parameter setting and poor dynamic response in traditional PID control electrohydraulic servo system, the RBF neural network PID was used to control system. Aimed at the problems existing in control, the control algorithm was improved. The results of the simulation and experimental research show that the improved RBFPID control algorithm effect is obviously better than the RBFPID and traditional PID control strategy. It has faster response speed and better robustness.