METHOD OF FORMING MULTILAYERED FILM

PROBLEM TO BE SOLVED: To provide a multilayered film forming method which is capable of easily forming a superconductive film on a base of optional shape at a low cost without generating mutual diffusion. SOLUTION: This multilayered film forming method comprises a process of forming a diffusion preventing film on the surface of a base, a process of forming a high-temperature superconductor and/or high-temperature superconductor precursor on the diffusion preventing film by migration electrodeposition or electrolytic deposition, and a process of enabling the base to undergo thermal treatment to sinter the high-temperature superconductor and/or the high- temperature superconductor precursor for the formation of a superconductive film.