Abstract: An automobile steering wheel includes an extension support, a plurality of support connecting portions and a detachable member, and a plurality of support connecting portions are formed at an external periphery of the extension support, and a connecting section is disposed separately at both ends of the support connecting portion, and an assembly positioning hole is formed at the center of the extension support, such that the two connecting sections at both ends of the detachable member and the two connecting sections at both ends of the support connecting portion are fixed to each other to provide a flexibly variable structure to meet user requirements while maintaining the safety of using the automobile steering wheel.