Abstract: In order to improve the comprehensive ability of students at different levels, an experimental project of DC motor control system based on single-chip microcomputer was designed for the comprehensive design experiment of single-chip microcomputer. The diversity of the realization scheme of each functional module of the DC motor control system experimental project is introduced from the aspects of DC motor drive module, display module, control module, project application and so on. The experimental project comprehensively applies the theoretical knowledge and advanced technology of multiple courses to realize the content hierarchy, functional modularization, and diversified programs. The practical hands-on ability, comprehensive design ability and innovation ability of students at different levels have been improved, and good teaching results have been achieved.