Because there was no oil pump vehicle load to simulate the aircraft hydraulic system to train flight service,and work performance of oil pump vehicle itself was also difficult to detect,a hydraulic laden experiment table based programmable logic controller was designed.According to the requirements of hydraulic system and electric control system of hydraulic laden experiment table,seal experiment and last work time experiment of hydraulic system of oil pump vehicle could be carried out by ladder programming.It is indicated that this system has reliable operation by the test results,thus the requirement is satisfied.