Abstract: [Problem] To provide a method and a device for sanitizing hands quickly and easily in view of the current state of hand hygiene. [Solution] A sanitization method which is characterized by involving both irradiation of ultraviolet light of a wavelength of between 190 to 230 nm and a treatment using an alcoholic sanitizer; a sanitization method which is characterized in that the alcoholic sanitizer comprises water and an alcoholic agent selected from any one of ethanol, propanol, or a mixture thereof, and the amount of alcoholic agent is greater than the amount of water; and a sanitization device which includes a sanitizer supply unit for depositing the alcoholic sanitizer on an object to be sanitized and an ultraviolet irradiation unit that irradiates the object to be sanitized with ultraviolet light of a wavelength of between 190 to 230 nm.