A vehicle lamp comprising: a lighting device; a housing where the lighting device is disposed; and a fixing unit (105 to 107) pressing the lighting device against the housing, wherein the lighting device includes: a flange portion; a storage portion protruding from one surface of the flange portion; a light-emitting module disposed in the end portion of the storage portion on the side opposite to the flange portion side and having a light-emitting element, wherein the housing includes a hole where the storage portion is disposed through, a plurality of concave portions disposed at a peripheral edge of the mounting hole, the plurality of projecting portions inserting into the plurality of concave portions, and wherein the fixing unit (105 to 107) presses the flange portion against the housing in the vicinity of a peripheral edge of the hole where the storage portion is disposed, characterized by a plurality of projecting portions disposed on a side wall of the storage portion and protruding outward from the side wall of the storage portion, wherein each of the plurality of projecting portions has a first fitted portion on a surface on the flange portion side, wherein a plurality of second fitted portions are disposed in the vicinity of the peripheral edge of the hole in the housing, each of the plurality of second fitted portions is fitted into the first fitted portion corresponding thereto. a lighting device; a housing where the lighting device is disposed; and a fixing unit (105 to 107) pressing the lighting device against the housing, wherein the lighting device includes: a flange portion; a storage portion protruding from one surface of the flange portion; a light-emitting module disposed in the end portion of the storage portion on the side opposite to the flange portion side and having a light-emitting element, wherein the housing includes a hole where the storage portion is disposed through, a plurality of concave portions disposed at a peripheral edge of the mounting hole, the plurality of projecting portions inserting into the plurality of concave portions, and wherein the fixing unit (105 to 107) presses the flange portion against the housing in the vicinity of a peripheral edge of the hole where the storage portion is disposed, characterized by a plurality of projecting portions disposed on a side wall of the storage portion and protruding outward from the side wall of the storage portion, wherein each of the plurality of projecting portions has a first fitted portion on a surface on the flange portion side, wherein a plurality of second fitted portions are disposed in the vicinity of the peripheral edge of the hole in the housing, each of the plurality of second fitted portions is fitted into the first fitted portion corresponding thereto. a flange portion; a storage portion protruding from one surface of the flange portion; a light-emitting module disposed in the end portion of the storage portion on the side opposite to the flange portion side and having a light-emitting element, wherein the housing includes a hole where the storage portion is disposed through, a plurality of concave portions disposed at a peripheral edge of the mounting hole, the plurality of projecting portions inserting into the plurality of concave portions, and wherein the fixing unit (105 to 107) presses the flange portion against the housing in the vicinity of a peripheral edge of the hole where the storage portion is disposed, characterized by a plurality of projecting portions disposed on a side wall of the storage portion and protruding outward from the side wall of the storage portion, wherein each of the plurality of projecting portions has a first fitted portion on a surface on the flange portion side, wherein a plurality of second fitted portions are disposed in the vicinity of the peripheral edge of the hole in the housing, each of the plurality of second fitted portions is fitted into the first fitted portion corresponding thereto.