Innovation is the theme of the times,under the background of innovation education,the development of case teaching needs to combine advanced educational theory and philosophy.In this context,the"input-output"hypothesis and CDIO are combined to carry out case teaching led by practical engineering.Through the corresponding case teaching,the steps of implementing the case teaching and the points of attention are illustrated.Driven by multi-dimensions,the effective implementation of case teaching will greatly stimulate the students' passion for innovation and promote their initiatives for learning.