The invention provides a phototherapy apparatus that allows confirmation that the therapeutic light has been irradiated on the appropriate site for treatment and as a result, is able to perform appropriate treatment. This phototherapy apparatus is provided with a photoirradiation part configured of a transparent material with a first surface whereon the site to be treated is placed and a second surface that is back to back with the first surface a light source that outputs the therapeutic light and shines the therapeutic light into the photoirradiation part and a photographing part with sensitivity in the wavelength region of the therapeutic light. The photographing part is configured to photograph the second surface.
