In order to solve the problems of manual extrusion with scraper on the granulation network, such as high labor intensity, low production efficiency, bad production environment and low production safety, a set of equipment for automatic granulation of silicon mixture was developed. The main technical requirements, mechanical system design and composition of the equipment are introduced, and the electrical control design is expounded. The results show that the design can realize the automatic granulation of a silicon-based mixture, and the production efficiency is high. The design has been successfully applied to the production of a certain enterprise.