A light-irradiating beauty care device includes a main body, and a light irradiation unit provided at one end of the main body for irradiating light on a living body surface. The light irradiation unit includes a light source for emitting the light, a reflector for reflecting the light emitted from the light source, a lens for passing the light therethrough, the reflector and the lens cooperating with each other to make uniform the quantity of the light emitted from the light source, a base for holding the reflector in place, a trigger for applying a trigger voltage to the light source and a casing for accommodating the light source, the reflector, the lens, the base and the trigger. The light irradiation unit is removably attached to the main body, the light source being fixed to the reflector, the reflector being held in place by the base and the lens.