The utility model provides a biax double -rotary rail vehicle axle end bearing high -frequency vibration tests test bench, including the framework, including a motor, an end cap, a controller, and a cover plate, simulation static load actuator, vertical actuator, horizontal actuator, the simulation shaft, the axle head axle box, a simulation shaft is respectively connected to its characteristics around the motor, wheel pair simulation axle box is equipped with in every corresponding wheel pair department of simulation shaft, the bearing is equipped with in the wheel pair simulation axle box, the assembly of vertical actuator is under wheel pair simulation axle box, two the simulation wheel pair axle boxes in front and back pass through the longitudinal support roof beam and connect, two longitudinal support roof beams are through a horizontal supporting beam swing joint, through horizontal rotation axle swing joint frame entablature above the horizontal supporting beam. The utility model discloses high -speed rotatory, the high -frequency vibration condition of bearing in the rail vehicle motion can be truly simulated out in the laboratory, comparatively accurate, detailed experimental data is obtained through horizontal, the vertical excitation of applying to design production for the axle box bearing provides more reliable tentation data with the maintenance.