Proposed is an image photographing-assisting accessory of an electronic device, which corrects shaking of an electronic device, the accessory comprising: a coupling unit to which the electronic device is coupled; a plurality of link rods connected to the coupling unit and rotatably coupled to each other; and a correcting unit formed at a part to which the link rods are rotatably coupled, wherein the correcting unit includes a fixing unit, a rotating unit rotating about the fixing unit, and a rotation locking unit for restraining the rotation of the rotating unit. Other embodiments are also possible.