A skin diagnosis device includes an imaging unit (17) that images a face of a person who is subjected to a diagnosis, a facial part analyzer (18) that analyzes a facial part, based on a facial image of the person who is subjected to the diagnosis, an irradiation management unit (13) that specifies positions of eyes of the person who is subjected to the diagnosis from an analysis result of the facial part, and determines a whole of a facial region except for the eye positions as an irradiation region, an irradiation unit (15) that irradiates the determined irradiation region with light, and a skin diagnosis analyzer (19) that performs a skin diagnosis, based on the facial image, which is imaged by being irradiated with the light, of the person who is subjected to the diagnosis. It is possible to protect the eyes of the person who is subjected to the diagnosis, and to relieve stress of the person who is subjected to the diagnosis.
