The invention relates to a tire reduction device which is applicable to the tires of various vehicles, and brings the social benefit of resource saving. Nowadays when various vehicles are widely developed, the number of tires is used, particularly, the number of cars and motorcycles increases day by day. Tires are inevitable parts of vehicles, and are most easily consumable. When a vehicle is used, the anti-skid function of the tires is gradually reduced, and the tires may finally become slick tires and bring relative danger to users. The replacement of new tires costs much, so some users hold a lucky attitude and continue using the slick tires, and do not replace the slick tires with new tires until they feel great danger. In fact, in the so-called slick tires, most parts are in good conditions except for the damaged parts which contact with the ground. In order to overcome the problem of high cost for installing new tires, the invention provides a tire reduction jacket; the material consumption of the tire reduction jacket is about 1/20 of that of a traditional tire, and the installation is convenient. The product brings energy-saving benefit to the society.