A refrigerator of the present invention includes a heat-insulating housing having an opening in a front surface, a partition wall (153) for dividing the heat-insulating housing into right and left parts, and a first storage room and a second storage room divided by the partition wall (153). In the refrigerator of the present invention, a temperature range of the first storage room is set higher than that of the second storage room. The partition wall (153) has a lighting unit (200) having a semiconductor light-emitting element (203) as a light source, on at least the first storage room side, and a heater (600) is disposed on the rear surface of the lighting unit (200). With this configuration, since inside of the storage room is bright, the visibility is good. Furthermore, since occurrence of dew condensation is suppressed, the reliability of lighting unit (200) is improved.