Shock attenuation protection device of elevator. The utility model provides a heat dissipation of being convenient for, intensity is high, has the second grade protection, the shock attenuation protection device of elevator of mechanical type. Including connecting plate, last guide way, guide pin bushing, casing, damping spring and lower guide way, the guide way is the disc down, the centre is equipped with annular boss, the casing is the tube -shape, the cover is located on the excircle of boss, go up the guide way and including the direction section and the canned paragraph that fuse, still include a plurality of voltage -sharing springs, it is a plurality of the voltage -sharing spring winds the center pin equipartition of direction section, the bottom surface of direction section be equipped with with the storage tank of voltage -sharing spring one -to -one, voltage -sharing spring one end is fixed in the storage tank, the top surface of boss be equipped with a plurality of with the groove of stepping down of voltage -sharing spring looks adaptation, the inner wall of casing is equipped with at least twice air discharge duct, the air discharge duct is vertical to be run through the casing. The utility model discloses the extension life cycle, improvement shock attenuation protection device's intensity and factor of safety.