A vehicle lamp includes two light guide plates, and at least one light emitting module. Each light guide plate has two side surfaces opposite to each other in a thickness direction, and a light input surface and a light output surface interconnecting the side surfaces. A length in the thickness direction between the side surfaces of each of the light guide plates is not greater than 10 millimeters. One of the side surfaces of one of the light guide plates faces one of the side surfaces of the other one of the light guide plates, such that the light input surfaces of the light guide plates are adjacent to each other. Each light emitting module is disposed at a position corresponding to the light input surface of a corresponding light guide plate.