The invention discloses a shockproof clamp for a workpiece. The shockproof clamp for the workpiece comprises a fixed bottom plate, a cushioning supporting and fixing device, an adjusting, positioningand bearing device, a limiting ejector pin assembly and an adjusting and fixing pressing plate assembly, the cushioning supporting and fixing device is arranged on the fixed bottom plate, the adjusting, positioning and bearing device is arranged on the cushioning supporting and fixing device, the limiting ejector pin assembly is arranged on the fixed bottom plate, the adjusting and fixing pressingplate assembly is arranged on the fixed bottom plate, a fixing hole is formed in the center of the fixed bottom plate, limiting holes are formed in the fixed bottom plate, every two limiting holes are oppositely formed in the radial direction of the fixing hole, and the cushioning supporting and fixing device comprises a cushioning supporting and fixing shaft, a cushioning supporting conduction plate, a locking and limiting sleeve and a limiting shaft. The invention belongs to the technical field of clamps, and particularly relates to the shockproof clamp for the workpiece, and the shockproofclamp for the workpiece can realize the fact of stably fixing and clamping the workpiece, can realize the fact of efficiently and adjustably clamping and fixing the workpiece in all directions, can improve the bearing capacity of the workpiece and the stability of placing the workpiece, and can improve the cushioning performance of stress on the workpiece.