A holder having a light sensor for tracking location of sunlight is disclosed. The light sensor holder includes a holder 100 in which a first light sensor 401 is set, a first light guide section 141 including a light inputting hole 151 adjacent to a wall 300 at one side 111 of a body 110 in the holder 100 and formed in vertical direction, wherein a light is inputted through the light inputting hole 151, a second home 122 connected to the first light guide section 141 via a refraction section 172 and a second light guide section 142, wherein the light inputted through the light inputting hole 151 is refracted, and the refracted light is delivered to a sensing section 420 of a first light sensor 401 through a light outputting section 161, and a first home 121 adjacent to the second home 122, the first light sensor 401 being set in the first home 121.