A light lamp for a vehicle includes a plurality of light function modules, each of the plurality of light function modules including: a light source module including: a light source configured to generate light; a light source lens disposed in front of the light source; and a reflection unit provided on a part of a front surface of the light source lens; a light distribution module disposed in front of the light source module and configured to receive the light from the light source module and to distribute the received light; and a dissipation module disposed behind the light source module and configured to dissipate heat generated by the light source.