LED (Light Emitting Diode) streetlamp and heat radiator thereof

The utility model relates to an LED (Light Emitting Diode) streetlamp and a heat radiator thereof. The LED streetlamp comprises a shell, wherein left and right side covers of the shell are provided with LED illumination modules; each LED illumination module comprises the heat radiator; each heat radiator comprises a top heat radiation plate and a bottom heat radiation plate, and a heat radiation frame connected between the top heat radiation plate and the bottom heat radiation plate; the top heat radiation plates and the bottom heat radiation plates of the adjacent two heat radiators are respectively matched in a butt joint manner; abutting end faces of the top heat radiation plates and the bottom heat radiation plates of the adjacent two heat radiators are respectively provided with top and bottom heat radiation holes which penetrate through the corresponding heat radiation plates in an up-down direction; a plurality of the top and bottom heat radiation holes are arranged at intervals in a left-right direction; and the top and bottom heat radiation holes are arranged in a manner of being over against up and down to form a convection channel which penetrates through upper and lower end faces of the LED illumination modules. The utility model aims to provide the heat radiator for the LED streetlamp, which is simple to mount.