The anti-rotation positioning device special for a hinged structure part belongs to the field of a hinged seat anti-rotation device for the static strength test of a hinged rail vehicle. The anti-rotation positioning device comprises four frame longitudinal pull rods, four longitudinal support rods, four frame connecting rod seats and four frame horizontal pull rods. The invention can make four frame longitudinal pull rods, four frame connecting rod seats and four frame horizontal pull rods to form a standard hexahedral rectangular frame by adjusting the relative positions of each frame longitudinal pull rod and the frame connecting rod seats or adjusting the length of each longitudinal support rod, so that two hinged seat horizontal beams of the hinged structural part can be parallel to each other in an initial posture during the whole process of the vehicle body static strength test, thereby meeting the requirements of the vehicle body static strength test.