A lamp for a vehicle includes a light source unit for generating light, a shield unit for selectively transmitting at least some of the light generated from the light source unit, and a lens unit for focusing the light that transmits trough the shield unit on a road surface. A main transmission light among the light that is transmitted through the shield unit forms a plurality of road surface patterns, and an auxiliary transmission light among the light that is transmitted through the shield unit is irradiated to one or more selected road surface pattern among the plurality of road surface patterns to increase brightness of the selected road surface pattern.