A lens incorporated light module (C01/C02/C03) includes a reflector (601/701/801), a light source (604/704/705/804) mounted in the reflector (601/701/801), and a lens (A01∼12/703/803) mounted in a front side of the reflector (601/701/801) for making the most of the light emitted by the light source (604/704/705/804) and reflected by the reflector (601/701/801) into high beam light or low beam light for lighting. Thus, the lens incorporated light module (C01/C02/C03) is practical for use in a vehicle headlight, avoiding emitted light rays from shining into the eyes of the drivers of the vehicles coming from the opposite direction.