The invention relates to the field of an automobile part, and discloses a low-extensibility automobile multi-wedge belt. The low-extensibility automobile multi-wedge belt comprises a top cloth fabric (1), an elastic belt body (2) and wedge teeth (3), wherein the top cloth fabric is arranged at the top surface of the elastic belt body; the wedge teeth are arranged at the bottom surface of the elastic belt body; the elastic belt body consists of an adhesive elastomer (4) and a core rope framework (5); the core rope framework is a polyester fiber and aramid fiber mixed twisted thread rope; the mixed twisted thread rope is in horizontal arrangement and is vertical to the length direction of the elastic belt body. The multi-wedge belt has the advantages that the elongation rate is relatively low; the elongation cannot easily occur under the long-period continuous tension and high-temperature dynamic operation conditions; the service life is long.