In a manufacturing method of an aluminum wire crimp terminal formed by a base material made of a copper-based metal, at the step of forming an intermediate worked material having an unfolded shape of the crimp terminal, fine recessed parts for promoting the adhesive performance of the crimp terminal against a conductor of the wire are formed on a plate-body surface forming an inner face of a conductor crimping part of the intermediate worked material. Subsequently, a thin-film surface layer made of an aluminum-based metal is formed on at least the plate-body surface. Finally, the intermediate worked material is bent to a prescribed terminal shape.