Embedded system is an interdisciplinary, profound foundation and practice-oriented course; at present, in the traditional teaching mode, embedded systems in colleges and universities generally have problems such as disconnected theory and practice, outdated assessment methods, and low enthusiasm of students. Arming to cultivate compound embedded development talents that meet the needs of enterprises, based on CDIO engineering education mode, this paper analyzes the characteristics of the "Embedded System" course, and takes engineering project development practice as the dominant idea to discuss the course system, teaching material construction and teaching method reform of "Embedded System." By designing a complete project teaching system, closely combines the theoretical teaching and practice of the course. Multiple rounds of teaching practices show that through the project-driven teaching method, students' engineering practice ability can be significantly improved, so that students can deeply master the basic principles of embedded systems, and possess the engineering development ability of embedded products at the same time, thus meeting the needs of enterprises for innovative and interdisciplinary talents.