The utility model discloses a heat radiator is with shock attenuation structure that convenience is good to overhaul, including radiator main part, and radiator main part is embedded in rectangular frame structure, and the upper end of radiator main part has the upper end cap of being inserted in the inside of upside frame cavity, and the lower end has the lower end cap of being inserted in the inside of downside frame cavity, and the upper side surface of downside frame cavity bottom is interval fixed with a plurality of shock attenuation unit no.