To provide an electric wire cover capable of performing the shielding function from interfering radio waves surely, by preventing the interfering radio waves from entering through gaps produced owing to the thicknesses of female and male snaps, reducing the amount of an expensive strip sheet body with metal foil to be used and the cost.

This electric wire cover has female and male snaps 2, 3 in both width- direction brim parts of a strip sheet 1. And the strip sheet 1 is composed of a beltlike sheet body 1A made of synthetic resin and a metal foil 1B laminated on its one surface. One width-direction side brim part of the strip sheet 1 is folded back into a state that the metal foil 1B is positioned outside, and female and male snaps 2, 3 are provided in the folded back part Y, and female and male snaps 2, 3 are provided on the other width-direction side brims. The strip sheet 1 is rounded into a cylindrical shape so that the metal foil 1B may be on the side of the inside surface and an electric wire is wrapped. And the female and male snaps 2, 3 in the folded back part Y and the female and male snaps 2, 3 on the other side brim of the strip sheet to be put on its outside are inserted and attached to each other, and on that condition, the metal foil 1B in the folded-back part Y and the metal foil 1B to be put on its outside are made to touch each other.