To provide a mold coating apparatus for coating the inner face of a centrifugal casting mold, which is simple in structure, can prevent the deflection, thermal sag and swing of a pipe inserted toward the inner face of the centrifugal casting mold and facilitates stable execution of mold coating work.

The mold coating apparatus for coating the inner face of the centrifugal casting mold has a large diameter pipe 22 supported by a coating carriage (mold coating feeding means), a medium diameter pipe 24 of which the base end section is supported by the large diameter pipe 22, a small diameter pipe 26 of which the base end section is supported by the medium diameter pipe 24 and of which the tip is provided with a coating nozzle 28 for applying the mold coating T to the inner face 6 of the centrifugal casting mold 1, and a feeding pipe (circulating passage) 32 for supplying air (refrigerant) formed in the large diameter pipe 22, medium diameter pipe 24 and small diameter pipe 26.