According to planting mode of apple orchard, multifunctional apple operating platform driven by hydraulic system was designed. The working performance of hydraulic system for lifting-descending, width adjustment and walking was analyzed based on the data of pressure and flow of working. The testing results show that the output flow of the hydraulic lifting-descending system of operating platform is stable and the maximum lifting speed is 0.062 m/s, which is high stability and high efficiency. Diverging collector valve, which could distribute the same flow to the all hydraulic cylinders, was designed on the hydraulic pipeline of lateral expansion of operating platform. The results show that four hydraulic cylinders of lateral expansion of operating platform reach to synchronous expansion. Under the fast walking of operating platform conditions, the time is 15.03 s when the operating platform reaches to uniform speed operation phase, the pressure and flow of the hydraulic system is 58.78 L/min and 7.95 MPa respectively, and the fluctuation is very little. Under the fast climbing of operating platform conditions, the output flow of hydraulic pump is reached 44 L/min rapidly. The time taken to complete the entire test process of climbing and descending is 18.41 s. It shows that the operating platform has good climbing performance and high working efficiency.