The invention provides a multi-wedge belt. The multi-wedge belt comprises a belt body, wedged teeth and a core wire; and the core wire is arranged inside the belt body. Compared with the conventional multi-wedge belt, the front surface and the back surface of the multi-wedge belt provided by the invention are provided with wedged teeth, so that the accessory belt pulley can be driven at the same time at a high efficiency and the transmission efficiency of the belt of the accessory pulley system is improved; and the structure of the pulley system is simplified and the cost of the engine is reduced.