Disclosed is a lighting module including a bottom part including a bottom cover having a transmission hole, a top cover provided on the bottom cover and having a protrusion hole, a reflective cover disposed between the bottom cover and the top cover, and having a parabolic surface to reflect incident light to the transmission hole, a heat radiation plate having a heat radiation protrusion protruding through the protrusion hole of the top cover and provided on the top cover and a light source part provided on one surface of the heat radiation protrusion to emit light into the reflective cover.