The utility model relates to a method and device for the torsion fatigue test for air springs or similar products, which is used in the rail traffic by simulating the actual working state of the air springs through vertical, horizontal and torsion multidimensional load systems. The torsion fatigue tester comprises a frame, a worktable, and an electrical control cabinet; wherein, the frame is in the structure of framed with four columns; an adjustable shelf is arranged at the upper part of the frame; a wobbler mechanism is positioned on the lateral face of the worktable of the frame; the wobbler mechanism can designed into a crank and rocker mechanism, which can drive the worktable into circular arc rotation with the length of the swing arm as the radius; the air spring for testing is positioned between the worktable and the adjustable shelf; a trapezoid screw is arranged on the adjustable shelf for vertically regulating the position of the adjustable shelf; a horizontal adjusting screw is also positioned on the adjustable shelf. The lateral shift is regulated by the horizontal adjusting screw on the adjustable shelf; the swinging radius is adjusted by the length of the swinging arm, and the vibration frequency is regulated by a frequency converter.