The utility model provides a wearing and tearing warning cover is exempted from to light -duty bar type of electric power system cable belongs to cable warning sign field, including the warning sign, the warning sign is the arc, and curved radian is greater than the semicircle, is equipped with annular parcel piece, and parcel piece parcel is on the cable to fix on the cable, the warning sign parcel makes wind can't borrow power and blows high tension cable on the parcel piece, can not cause wearing and tearing to the cable.