A mounting carrier for a bulb has a fastener and a mounting unit, the fastener has an engaging portion and a holding ring, and the engaging portion has a slant protrusion. The mounting unit connects to the fastener and has a connecting portion having at least one blocking lump and a fastening hole, the engaging portion is held and limited by the blocking lump, and the fastening hole is fastened with the slant protrusion of the engaging portion. In use, the bulb is clamped by the holding ring, so that the bulb can be hung on a wall for illumination.