It was proposed of a set of pumpcylinder, closed type pumpmotor, open pumpmotor, cooling system as a whole, which cloud realize remote wireless communication and management of the multifunction hydraulic test bench. Through the design of hydraulic system of bench, the function of the test data inspected, sampled, and the remote monitoring was analyzed. It was compared with the traditional test bench in design. In addition, the closed type pump was designed and tested in experiment, the closed type pump of speed, pressure and load torque of change curve was drawn. The result show that the bench is more convenient, flexible and advanced than traditional design. The test results of closed type pumpmotor correspond to design requirements, and which meets that of the test bench.