With the continuous reform of electronic information teaching and the comprehensive training of Engineering application-oriented talents, ARCS motivation model is applied to the practical teaching of digital electronic technology in this paper. In order to improve the teaching effect of practical courses and cultivate high-quality electronic information talents, three parts of curriculum arrangement, in-class teaching and out-of-class teaching are designed respectively through four dimensions of attention, association, confidence and satisfaction, and challenge of the motivational model is analyzed. which can provide some reference for the reform of practical teaching.