For the characteristics of dynamic response multiway valves of construction machinery, by the application of hydrodynamic, hydromechanics and kinetics, the influence laws of hydraulic temperature changes on dynamic performance parameters of multiway valves were analyzed. The mathematical model and Simulink simulation model of the movement of valves element were established. The simulation results show that temperature changes have certain effects on multiway valves dynamic response; that is, side by side with the increasing temperature, the rise time of dynamic response will decrease, the maximum overshoot, adjustment time, and vibration amplitude will increase. The damping holes at the left and right ends of the spool, the pressure adjustment on the oil, shock absorption function with the temperature rise is weakening continuously. The conclusion of this work will provide a certain referance to the design and usage of multiway valves.