To provide a light irradiation beauty device whereby the risk of light from a flashlamp entering an eye can be reduced. The light irradiation beauty device of the present invention is provided with: a main body having an electrode a first beauty attachment having a first connection electrode for contacting the electrode when mounted to the main body, a first supply electrode connected to the first connection electrode and having a contacting part for contacting a skin surface of a user, and a first light-emitting element for radiating a first light to the skin surface and a second beauty attachment having a second connection electrode for contacting the first supply electrode when mounted to the first beauty attachment, a stimulation imparting part for supplying an electric current or a second light to the skin surface, the stimulation imparting part being connected to the second connection electrode, and a light-shielding window for shielding a portion of the light of the first light-emitting element and reducing the surface area of the skin surface irradiated by the first light.