The invention discloses a multifunctional bird repelling device. the multifunctional bird repelling device includes a tapered cover with a sharp upper end and a thick lower end; tapered cover holes communicating with the upper part and the lower part are evenly distributed in the tapered cover; tapered tubes with thick upper ends and thin lower ends are butt-jointed under the tapered cover through butt-joint devices; clamping grooves are formed in the lower parts of the tapered tubes, wherein the clamping grooves and an upper connection cross arm of an insulator string form a clamping fit; funnels with large upper openings and small lower openings are arranged in inner rings of the tapered tubes; tapered wind collection tubes having thick inlets and thin outlets are arranged in the funnels; the inlets communicate with outer walls of funnels and outer walls of the tapered tubes; the outlets communicate with inner walls of the funnels, slant down, and bend toward the lower parts of the clamping grooves; and locking devices are arranged on the outer peripheries of the tapered tubes, wherein the locking device and cross beams of a door-shaped tower form a locking fit. The advantages of the multifunctional bird repelling device are that the electricity bird repelling device is simple in structure, is small in size, cannot affect power distribution, is easy and rapid to install, can avoid drilling holes in a tower, can be fixed firmly, can repel birds all-weather, is long in repelling effect, and is easy to demount and maintain.