A light emitting module includes a circuit board having a plurality of reflective portions arranged in one direction and connection portions connecting the plurality of reflective portions, light emitting devices mounted on the plurality of reflective portions, and lens units disposed to cover the light emitting devices within boundaries of surfaces, of the plurality of reflective portions, on which the light emitting devices are mounted. A width of each of the connection portions in the other direction, perpendicular to the one direction thereof, is smaller than a diameter of each of the lens units, thus reducing a generation of a dark portion.