Abstract: A fabrication method of a steam turbine blade equipped with an erosion shield includes the steps of preparing constituent elements including the steam turbine blade having a blade part, the erosion shield to be joined to a leading edge part of the blade part on the tip side thereof, and a shim to be disposed between the blade part and the erosion shield, any of the constituent elements having a backing part to serve as a backing for preventing burn through of molten metal at the time of the electron beam welding; assembling the constituent elements; performing electron beam welding to the leading edge part of the blade part, the erosion shield and the shim while utilizing the backing; and machining including removal of the backing part, after the electron beam welding, thereby forming the steam turbine blade in the shape of a final product thereof.