Hinged vehicle door test bench and test method

The invention relates to a hinge vehicle door test bench and a test method. The test bench comprises a bench supporting seat, a bench main body, a vehicle door inclination angle adjusting structure and a hinge door opening and closing structure. The rack main body comprises an upper frame, a lower frame and a middle rotating disc; the middle rotating disc comprises an upper disc and a lower disc; the upper frame rotates relative to the lower frame to adjust the up-down gradient of the door; the vehicle door inclination angle adjusting structure comprises a servo motor structure and a circular flange double-bearing seat; the centers of the two sides of the lower frame are installed on the top faces of the two rack supporting seats through a servo motor structure and a round flange double-bearing seat respectively. The servo motor structure drives the rack body to rotate to adjust the vehicle door inclination angle. The hinge door opening and closing structure comprises a rotating structure, the rotating struct