Fitting structure of wheel cover

A fitting structure of wheel covers is provided with a plurality of holes disposed circularly around a wheel cover. An inner edge of each hole is projected to form a positioning seat. A fixing seat is connected to a bottom edge of the positioning seat by a connecting segment. In a first position, a fixing seat is located adjacent each hole. The positioning seat includes two mounting rods at two sides respectively, a hook arranged at a center, and mounting space formed between the mounting rod and the hook. The fixing seat includes mounting blocks corresponding to the mounting space and mounted with the mounting rods, and in a second position, the stopping bars lean against the corresponding mounting rods.