Provided are an enamel coating method and apparatus. The enamel coating method includes (a) preprocessing a surface of a conductive coating object by feeding the coating object into a preprocessing chamber by an in-feed conveyor, (b) coating the surface of the coating object with an enamel glaze supplied from an enamel glaze supply nozzle provided inside a coating chamber by feeding the preprocessed coating object into the coating chamber, and (c) firing the coated coating object by feeding the coated coating object into a firing chamber, wherein the firing chamber in the (c) firing includes a firing chamber conveyor having at least two transport rollers, and the firing chamber conveyor transports the coating object to an output conveyor while supporting a lower side of the coating object by the at least two transport rollers.