PURPOSE: A device of preventing a magpies nest on an electric pole arm prevents accidents and minimizes installation costs by a design that can be easily installed.CONSTITUTION: Covers (10) of a bird-repelling device face to each other, and a connector (11) composed of a hinge and an elastic body fixes the upper sides of both covers. An arm holding part (13) is formed to fix the lower side of the cover with an arm. An elastic steel plate (12) is combined with a bolt at the upper side of the cover to maintain the cover at regular intervals. A guide (16) is formed outside of the cover to be easily installed on the arm. A groove (21) is formed on one side of an elastic rubber plate (22) and fixes both ends to the cover with the bolt. A support (20) and the elastic rubber plate are fixed with a bolt by laying a steel plate (24) on the upper side of the elastic rubber plate to prevent the separation. A fixed pin is formed on the upper side of the support and protrudes to an upper through hole (15) of the cover to fix the cover.COPYRIGHT KIPO 2013탄성체를 내부에 구비하여 하측에서 CS봉으로 지지체를 밀어올리면 탄성체의 탄성에 의해 덮개가 살짝 접히면서 완금의 상측으로 위치할 수 있어 손쉽게 설치 가능한 것으로 작업자가 높은 곳까지 올라가지 않고도 손쉽게 설치 가능하여 안전사고를 방지할 수 있으며, 조류 퇴치기의 구조가 간단하여 제작비용이나 설비하는 비용이 절감되어 경제적인 효과가 있는 것이다.