Wrenching performance testing device for bolt screwing groove and testing method thereof

The invention discloses a wrenching performance testing device for a bolt screwing groove. The wrenching performance testing device comprises a torque wrench, a torque wrench fixing end, a bracket, ascrewing groove screwdriver set head, a three-jaw chuck, a three-jaw chuck fixing plate, a cover plate, an axis force sensor housing, an axis force sensor force bearing plate, an axis force sensor, anut with a handle, a lifting screw lead, a base and an axis force sensor display terminal. The torque wrench fixing end is fixedly connected to the bracket and the torque wrench and the screwing groove screwdriver set head are separately mounted at two ends of the torque wrench fixing end; the three-jaw chuck is fixedly connected to the three-jaw chuck fixing plate, a chuck pin roll of the three jaw chuck fixing plate is inserted into a chuck pin roll hole of the cover plate, a cover plate pin roll of the cover plate is inserted into a cover plate pin roll hole of the axis force sensor housing, the axis force sensor is