The invention relates to an automotive LED headlamp capable of achieving overall and rapid radiating. The automotive LED headlamp comprises a thermal conductive plastic shell and a metal radiating support, the metal radiating support extends out of the shell and forms radiating fins, and the metal radiating support and the shell are in sealing fit. The part, extending out of the shell, of the metal radiating support is multiple radiating fins alternately distributed in parallel so that heat in the automobile headlamp can be rapidly output to the exterior of the shell of the automobile headlamp through the radiating fins, and airflow generated in the automotive travelling process can conduct radiating on the radiating fins extending out of the shell. In addition, the heat on the metal radiating support is transmitted to the shell through a combination part of the metal radiating support and the shell, and heat is radiated overall and rapidly through the shell; and meanwhile, in the automobile travelling process, the generated airflow conducts rapid air cooling on the overall shell.