Abstract: The inventive concept relates to an apparatus for phototherapy treatment of a pet. The apparatus includes a grippable main body having a pair of heads for respectively emitting light, a plurality of first LED modules respectively disposed in the pair of heads, wherein the plurality of first LED modules irradiate light of a specific wavelength toward a skin and an external auditory meatus of the pet, respectively, at least one second LED module disposed in one of the pair of heads, wherein the at least one second LED module irradiates light of a wavelength different from the wavelength of the light of the plurality of first LED modules toward the external auditory meatus of the pet, and a controller disposed in the main body to control the first LED module and the second LED module to respectively irradiate the light.