A method for manufacturing an elastic tubular body, comprises a first step of inserting a rod-like conductive member 2 into an elastic tubular body 1; a second step of giving a first electrical potential to the rod-like conductive member 2; and a third step of applying a coating material 31 charged to a second electrical potential to the elastic tubular body 1; wherein the rod-like conductive member 2 has a deformed cross-sectional shape in a direction vertical to an axial direction.