The invention discloses a universal test bench for a high-speed train damper. The universal test bench for the high-speed train damper aims to solve the problems that an existing test bench of the damper is poor in performance, low in precision and high in cost. The test bench mainly comprises a mounting platform, a damper universal supporting assembling body, a vertical actuator assembling body, a bearing stand column, a transverse actuator assembling body, a damper variable angle mounting assembly and a longitudinal actuator assembling body; in the universal test bench for the high-speed train damper, the damper variable angle mounting assembly is connected with the vertical actuator assembling body, the transverse actuator assembling body and the longitudinal actuator assembling body; meanwhile, one end of the test damper is fixed, and the other end of the test damper is connected with the damper variable angle mounting assembly. The three actuators act under the control of a control system, the work state of the damper is represented truly, and meanwhile signals collected by a sensor are transferred to a detection system.