A securing member for a steel ring of a wheel cover has a main body, two lateral supporting plates and a confining block. The main body projects from an inner side of the wheel cover, and has an engaging protrusion on an inner side of a top portion. The lateral supporting plates each extends inwardly of the wheel cover from a respective side of the main body, and has a gap on a top to form a receiving space between same and the engaging protrusion. The steel ring can be located in the receiving space. The confining block is formed on the inner side of the main body to support the steel ring.