Lightweight automobile hub

The utility model provides a light-weight automobile hub which comprises a hub body, the hub body is cylindrical, one end of the hub body is in a horn-shaped closing-up shape, and the end, away from the horn-shaped closing-up shape, of the hub body is fixedly connected with a half shaft installation sleeve. A first reinforcing ring and a second reinforcing ring which are convex outwards are fixedly arranged on the inner wall of the hub body; an annular weight reduction groove located between the first reinforcing ring and the second reinforcing ring is further formed in the inner wall of the hub body in a sunken mode, and the outer wall face of the half shaft mounting sleeve is of a continuous wavy annular structure. A plurality of connecting plates are fixedly connected to the outer wall of the joint of the hub body and the half shaft mounting sleeve at equal intervals, and each connecting plate is provided with a connecting hole. The automobile hub effectively solves the problem that in the prior art, the p