According to the high-performance and high-efficiency requirements of the hydraulic cylinder control system with hydraulic heavy-duty and long-stroke single rod,a valve-controlled open circuit and a pump-controlled closed circuit were used to drive a new circuit of asymmetric hydraulic cylinders in parallel.This circuit combined the high performance of the valve control circuit and the high efficiency characteristics of the pump control circuit,but the switching of the two circuits of the pump and valve would bring an impact to the system.In order to reduce the impact,a two-dimensional fuzzy switching controller was designed,in which the displacement error and speed of the hydraulic cylinder rod were used as input and the switching coefficient of the pump valve circuit was used as output;AMESim and MATLAB were used for co-simulation.The results show that compared with the direct switching,using the proposed method can obviously reduce the impact when the two circuits switch,and further improve the performance and efficiency of the system.