The present invention relates to a multi-dimensional snow and ice removal device of a power network and an application method thereof, pertaining to the technical field of power maintenance equipment. The device includes a frame; an opening is arranged on one side of the frame and used for placing wires into the frame; two rollers are arranged in the frame, the middle surface of each roller is concave relative to both ends of the roller, so that the roller can be put on the wire to roll and drive the device to move while remaining stable; and two positions, on both sides of each roller, on the frame are both provided with arc hoops, wherein the arc hoops are linked with the frame via cylinders, one side of each arc hoop is a blade edge. The working method of the device comprises the steps of placing the wires under the rollers inside the frame from the opening, clamping the wires via the arc hoops by controlling the cylinders, moving the device and carrying out deicing operation by using the blade edges of the arc hoops. The multi-dimensional snow and ice removal device of the power network has the advantages of operation easiness, good effect for deicing, high adaptability(especially in a double-line condition), convenience for carrying and on-site installation, saving of manpower and material cost and reducing of the probability of accidental injuries to an operator.