In order to study the roll forming of single-layer solid spherical hinges, its 3D finite element model was established. The process parameters of spherical hinge roll forming were analyzed by the orthogonal test method, the primary and secondary factors affecting the processing pressure and roundness of spherical hinge were obtained, and the influence laws of different roll forming parameters on the processing quality of spherical hinges were obtained. The results show that in the process of spherical hinge roll forming, the primary factor affecting the processing pressure and roundness of spherical hinge is the feeding amount, the secondary factors are the roller rotate speed and roll forming time. Thus, in order to ensure the processing quality and improve efficiency, appropriate roller rotate speed and feeding amount during spherical hinge roll forming process should be selected to shorten the roll forming time. The optimal process parameters are the roller rotate speed of 4 rad·s-1, the feeding amount of 1 mm, and the roll forming time of 15 s. This research provides theoretical support and practical significance for the design of process parameters and the development of roll forming equipment for single-layer solid spherical hinges.