The invention discloses a comb. The comb is composed of elastic ropes, comb teeth, a comb body, magnet strips, circular flat thin magnets and a rubber cushion, and is characterized in that the rubber cushion is arranged on the comb body, the comb teeth regularly arrayed are arranged on the rubber cushion, the magnet strips are arranged on the front side and the left side of the comb body, the position, on the rear side of the rubber cushion, of the comb body is connected with the seven corresponding elastic ropes, the other ends of the seven elastic ropes are connected with the corresponding circular flat thin magnets respectively, the position, on the right side of the rubber cushion, of the comb body are connected with the four corresponding elastic ropes, and the other ends of the four elastic ropes are connected with the corresponding circular flat thin magnets respectively. In the use process, a user can hold the comb body by hand and comb hair through the comb teeth; when wanting to clean hair, the user takes down the circular flat thin magnets from the magnet strips and then sequentially rotates the circular flat thin magnets on the eleven elastic ropes from one side of the comb body to the other side so that the hair wound around the comb teeth can be separated from the comb body under the effect of the elastic ropes; the comb has the advantages of being low in cost, reliable, durable and high in practicability.