The invention discloses a radiator, which comprises a thermal conductive plate, a radiating body and fixing bolts, wherein the thermal conductive plate is formed by stamping a thermal conductive metal plate, and is provided with fastening holes and filling holes which can be filled with a plastic thermal conductive material; the thermal conductive plate and the radiating body are accurately matched through bolts, and the heat is uniformly conducted to radiating fins; the radiating body is formed by adhering a plurality of radiating fins which are sleeved and overlapped with one another and the plastic thermal conductive material, and is fastened by bolts; the radiating fins are formed by stamping thermal conductive metal thin plates, and are divided into a thermal conductive part and a thermal radiation part respectively, wherein fastening holes and filling holes are reserved on the thermal conductive part, and are filled with the plastic thermal conductive material; the thermal conducive part is accurately matched with the thermal conductive plate and the radiating fins through the bolts, and the heat is uniformly conducted to the radiating fins; and the filling holes can be used for filling the plastic thermal conductive material, so that a heat source body, the thermal conductive plate and the radiating body can be globally and closely combined. The radiator has the advantages of simple structure, good radiating effect and the like, and is easy to manufacture and convenient to use.