A damping device, including a base (100), a movable carrier (200) and a plurality of elastic ribs (300), the elastic ribs (300) being arranged in an annular manner, two ends of each elastic rib (300) being respectively connected to the base (100) and the movable carrier (200), each elastic rib (300) respectively forming at least one arc section. The curved elastic ribs (300) respectively generate a balancing force in the axial direction and the circumferential direction, the balancing force corresponding to an exerted external force, so as to eliminate shocks caused by the external force.