The utility model relates to a multi -functional unwrapping wire coaster, including casing, cutting ferrule, couple and auxiliary fixture, the top of casing sets up the couple, and the below of casing sets up the cutting ferrule, connects auxiliary fixture on the cutting ferrule, the casing in set up the fixed axle, pulley mounting is on the fixed axle. The utility model discloses all can use on ordinary cross arm he on the swallow -wing cross arm, use nimble, damage electric wire when having avoided on the swallow -wing cross arm unwrapping wire.