The utility model relates to a single electric low pressure liquid accuse magenetic exchange valve test system, including the testing power supply, the test oil sources, the filter, the accumulator, the overflow valve, the check valve, the manometer, pressure sensor, the hydraulic pump, high pressure isolating valve, the flowmeter, a filte, the surveillance camera head, bearing cavity and control system, an unidirectional valve, the working chamber is established to the pressure -bearing cavity surface, it all installs at the location bench to wait to detect single electric low pressure liquid accuse magenetic exchange valve and surveillance camera head, the testing power supply, the test oil sources, the filter, the accumulator, the overflow valve, the check valve, the manometer, pressure sensor, the hydraulic pump, high pressure isolating valve, the flowmeter, a filte, this novel one side can the electric low pressure liquid of effectual list accuse magenetic exchange valve complicated operational environment analog simulation carries out, on the other hand detecting system adjusts nimble conveniently, can effectively satisfy the detection of the multiple running state of single electric low pressure liquid accuse magenetic exchange valve sealing down, insulation and pressure -bearing characteristic.