PURPOSE: To improve the surface characteristic of an ingot, to decrease the generation of surface flaws and to make macrostructure uniform by subjecting the molten metal in a casting mold to electromagnetic stirring in the case of casting the molten metal into the casting mold and solidifying the same in the casting mold.

CONSTITUTION: The molten metal 6 is poured into the casting mold 2 from the top thereof and casting is continued while the molten metal 6 in the casting mold 2 is stirred approximately in a horizontal direction by successively energizing two stages of upper and lower electromagnetic stirring coils 4 in synchronization with casting. The electromagnetic stirring is continued for for suitable time after the end of casting to allow the molten metal 6 to solidify. The bottom of the casting mold 2 is cooled with water and since a heat insulating flask 3 is provided on the inside wall surface of the casting mold 2, the molten metal 6 is unidirectionally solidified and the internal quality of the ingot is made uniform.