Aiming at the defect of fatigue and fracture of the working device caused by the impact and vibration of the hydraulic system at the moment of the start and stop of the traditional hydraulic steel grabbing machine, following the principle that replenishing hydraulic oil and stabilization at the start instant and peak-shaving and pressure control at the moment of stopping,an anti-fatigue fracture hydraulic control system was developed using accumulators, damping valves, pressure switches and other components.Then the impact of the boom’ s inertial energy on the system is reduced,the impact and vibration at the moment the boom started and stopped is reduced.The stabilizing effect has been verified through practice.This program has authorized a utility model patent (CN214170975U), and an invention patent (CN112283189A) is in the substantive examination stage.