In view of the insufficient stability of the flow control of the multi-way valve port of the excavator loader and the low work efficiency of the whole machine, the multi-valve electro-hydraulic proportional control model was established to realize the intelligent regulation of the multi-way valve flow of the excavator loader. Based on the DH principle, the loading work device kinematics and dynamics analyses were done.The electromechanical-hydraulic coupling simulation model of the loading work device was established by using MATLAB/Simulink.Finally, the PID control algorithm was designed to realize the hydraulic multiport valve port flow intelligent control to improve the movement accuracy and control effect of the loading work device. The simulation results show that the Simulink platform can be used to accurately and efficiently establish the electromechanical-hydraulic joint simulation model of complex system. It meets the requirements of the shifting performance of the bucket and the fixed angle motion of the loading working device.