The invention discloses an automobile hub with a good cooling function. The automobile hub comprises a rim, spokes and an axle hub. The axle hub is fixedly installed on the circle center of the rim through the spokes. A plurality of cooling holes are formed among the spokes which are provided with inclined fillets. The axle hub is provided with a center hole which is through in the axial direction and used for installing an automobile axle. The automobile hub is simple in structure and reasonable in design. The spokes of the hub are provided with the inclined fillets. In the high-speed running process of a wheel, air flow can be guided to the cooling holes among the spokes through the fillets, air flowing between hubs is accelerated, and a good cooling effect is achieved. Meanwhile, due to the streamline design of the fillets, the effect that the automobile hub is attractive can also be achieved, and the obtained wheel hub is popular with customers. Meanwhile, the automobile hub has the advantages that the service life is long, replacement is convenient and corrosion resistance is high, and market competitiveness is quite large.