the electro-hydraulic servo system of conveyor has strong coupling mechanical characteristics. Aiming at the problem of complex dynamic performance analysis and delayed dynamic response of large-scale conveyor under unstable operation conditions, based on the conveyor system structure and the dynamic model of electro-hydraulic servo system, the discrete characteristics of related components of electro-hydraulic servo system were analyzed, and the conveyor electromechanical system was constructed by AMESim and Simulink modeling and simulation platform The dynamic model of the electro-hydraulic servo system is analyzed by Monte Carlo toolbox, and the dynamic characteristics of the system are optimized by using sliding mode variable structure. Simulation tests are carried out under different working conditions. The test results show that the dynamic response and stability of the electro-hydraulic servo system are improved by using Monte Carlo analysis method and sliding mode control.