The invention discloses a numerical control plasma cutting machine work station with stable clamping. The numerical control plasma cutting machine work station with stable clamping comprises a worktable, supporting legs, a sliding groove, a movable block, a limiting pipe, a limiting rod, a first spring, a rope ring, a traction rope, a winding wheel, a clamp, a fixed frame, a hydraulic cylinder, apiston pipe, a piston frame, a first piston, a piston rod, a second piston, a second spring, a clamping plate, a thread hole, a guide rail, a bolt, a guide groove, a sliding block, a guide block, an oil storage groove, an oil adding hole, a cutting frame, a wheel frame, a transmission wheel, a first transmission belt, a motor, a second transmission belt, a transmission block, rollers, a transmission rod, a mounting plate, an air cylinder, a plasma cutting machine and a clamping groove. The work station has the beneficial effects of being stable in clamping, wide in application, high in cuttingefficiency, precise in positioning and the like.