To meet the requirements of aircraft tractor,the main parameters of power system were optimized and the optimized results were analyzed by a mathematical model.The braking control system structure and the working policy were designed according to the requirements of regenerated hydraulic braking system.The dual hydraulic braking style was analyzed with consideration of braking conditions greatly influenced by parameter perturbation,so that the optimal working mode was obtained.The control algorithm was proved to be efficient based on the design of ANN fuzzy PID controller and the performance test on the test-bed simulated the hydraulic hybrid tractor.