High-pressure medium dynamic sealing assembly dynamic working performance detection system and test method

The invention discloses a high-pressure medium dynamic sealing assembly dynamic working performance detection system and test method, the system comprises a cylinder body and a piston rod, a first high-pressure cavity and a second high-pressure cavity are defined in the cylinder body, the piston part is provided with a first accommodating groove and a second accommodating groove, the first accommodating groove is used for installing a first sealing element, and the second accommodating groove is used for installing a second sealing element; the detection device is connected with the first high-pressure cavity and the second high-pressure cavity and is used for filling a medium so as to perform leak detection test on the first high-pressure cavity and/or the second high-pressure cavity; the driving device is used for detecting the working performance of the first sealing piece and/or the second sealing piece. The action of the piston and the sealing assembly can be realized through pressure supply and pressure