A vehicle lamp comprising: a first light source; and a light guide including a first rod-shaped part and a plate-shaped part, wherein the light guide has a structure in which a circumferential surface of the rod-shaped part is connected to a side surface of the plate-shaped part, the plate-shaped part includes a light diffusion member inside, and light of the first light source is incident on the rod-shaped part from one end of the rod-shaped part, enters the plate-shaped part from the circumferential surface of the rod-shaped part, and wherein the light diffusion member is structured to guide and distribute said light of the first light source inside the plate-shaped part and to output said light from a principal surface of the plate-shaped part, wherein, the vehicle lamp further comprises a third light source, the light guide includes a further rod-shaped part, the first rod-shaped part is connected to a first side surface of the plate-shaped part, and the further rod-shaped part is connected to a second side surface of the plate-shaped part facing away from the first side surface, and the first light source is provided at one end of the first rod-shaped part, and the third light source is provided at one end of the further rod-shaped part, and the vehicle lamp is structured to exhibit a first lamp function by lighting the third light source to emit light in a second area and a second lamp function by lighting the first light source to emit in a first area, characterized in that the plate-shaped part includes an inflected part provided between the first side surface and the second side surface, the inflected part being a portion where the first area extends from the first side surface vertically upward and toward the front side of the vehicle lamp and the second area extends vertically downward and toward the front side of the vehicle lamp are connected, the inflected part having therefore a V shape projecting toward the front side of the vehicle lamp when assembled to the vehicle, a first light source; and a light guide including a first rod-shaped part and a plate-shaped part, wherein the light guide has a structure in which a circumferential surface of the rod-shaped part is connected to a side surface of the plate-shaped part, the plate-shaped part includes a light diffusion member inside, and light of the first light source is incident on the rod-shaped part from one end of the rod-shaped part, enters the plate-shaped part from the circumferential surface of the rod-shaped part, and wherein the light diffusion member is structured to guide and distribute said light of the first light source inside the plate-shaped part and to output said light from a principal surface of the plate-shaped part, wherein, the vehicle lamp further comprises a third light source, the light guide includes a further rod-shaped part, the first rod-shaped part is connected to a first side surface of the plate-shaped part, and the further rod-shaped part is connected to a second side surface of the plate-shaped part facing away from the first side surface, and the first light source is provided at one end of the first rod-shaped part, and the third light source is provided at one end of the further rod-shaped part, and the vehicle lamp is structured to exhibit a first lamp function by lighting the third light source to emit light in a second area and a second lamp function by lighting the first light source to emit in a first area, characterized in that the plate-shaped part includes an inflected part provided between the first side surface and the second side surface, the inflected part being a portion where the first area extends from the first side surface vertically upward and toward the front side of the vehicle lamp and the second area extends vertically downward and toward the front side of the vehicle lamp are connected, the inflected part having therefore a V shape projecting toward the front side of the vehicle lamp when assembled to the vehicle, the light guide includes a further rod-shaped part, the first rod-shaped part is connected to a first side surface of the plate-shaped part, and the further rod-shaped part is connected to a second side surface of the plate-shaped part facing away from the first side surface, and the first light source is provided at one end of the first rod-shaped part, and the third light source is provided at one end of the further rod-shaped part, and the vehicle lamp is structured to exhibit a first lamp function by lighting the third light source to emit light in a second area and a second lamp function by lighting the first light source to emit in a first area, characterized in that the plate-shaped part includes an inflected part provided between the first side surface and the second side surface, the inflected part being a portion where the first area extends from the first side surface vertically upward and toward the front side of the vehicle lamp and the second area extends vertically downward and toward the front side of the vehicle lamp are connected, the inflected part having therefore a V shape projecting toward the front side of the vehicle lamp when assembled to the vehicle,