A lighting module comprising: a circuit board having a length in a direction of a first axis longer than a length in a direction of a second axis; a plurality of optical lenses arranged in the direction of the first axis on the circuit board; and at least one light emitting device respectively disposed between the circuit board and the plurality of optical lenses, wherein the optical lens comprises: an incident surface disposed on the circuit board; a first light output surface upwardly emitting light incident through the incident surface; a second light output surface emitting the incident light in a lateral direction; a side protruding part protruding outward from a first region of the second light output surface; and the side protruding part of each of the optical lenses protruding outward of the circuit board, wherein the plurality of optical lenses arranged on the circuit board are spaced apart from each other; and wherein the side protruding part of each of the plurality of optical lenses protrudes in the direction of the second axis perpendicular to the first axis, characterized in that each optical lens comprises a plurality of support protrusions protruding in a direction of a top surface of the circuit board, and a straight line connecting two support protrusions adjacent to the side protruding part among the plurality of support protrusions is disposed in the direction of the first axis. a circuit board having a length in a direction of a first axis longer than a length in a direction of a second axis; a plurality of optical lenses arranged in the direction of the first axis on the circuit board; and at least one light emitting device respectively disposed between the circuit board and the plurality of optical lenses, wherein the optical lens comprises: an incident surface disposed on the circuit board; a first light output surface upwardly emitting light incident through the incident surface; a second light output surface emitting the incident light in a lateral direction; a side protruding part protruding outward from a first region of the second light output surface; and the side protruding part of each of the optical lenses protruding outward of the circuit board, wherein the plurality of optical lenses arranged on the circuit board are spaced apart from each other; and wherein the side protruding part of each of the plurality of optical lenses protrudes in the direction of the second axis perpendicular to the first axis, characterized in that each optical lens comprises a plurality of support protrusions protruding in a direction of a top surface of the circuit board, and a straight line connecting two support protrusions adjacent to the side protruding part among the plurality of support protrusions is disposed in the direction of the first axis. an incident surface disposed on the circuit board; a first light output surface upwardly emitting light incident through the incident surface; a second light output surface emitting the incident light in a lateral direction; a side protruding part protruding outward from a first region of the second light output surface; and the side protruding part of each of the optical lenses protruding outward of the circuit board, wherein the plurality of optical lenses arranged on the circuit board are spaced apart from each other; and wherein the side protruding part of each of the plurality of optical lenses protrudes in the direction of the second axis perpendicular to the first axis, characterized in that each optical lens comprises a plurality of support protrusions protruding in a direction of a top surface of the circuit board, and a straight line connecting two support protrusions adjacent to the side protruding part among the plurality of support protrusions is disposed in the direction of the first axis.