An apparatus for applying a coating solution and a method of fabricating a liquid crystal display device using the same are provided. In order to improve the shape of the inside of the nozzle and to secure the geometrical uniformity of the inside of the nozzle, the apparatus includes a nozzle comprising a nozzle body, the nozzle body including an external body and an internal body. A distance between the external body and the internal body is controlled. An inlet port is provided on the nozzle body so that coating solution is received, and a discharge port is provided below the nozzle body to coat the surface of a material to be processed with the coating solution and a driving unit for moving the nozzle in a predetermined direction.