Abstract: Aiming at the difficult points in the teaching of speech signal processing, a novel demonstration platform based on MATLAB is proposed.The platform can achieve signal acquisition, preprocessing, and many other basic speech signal processing functions.Based on the explanation of the overall design idea, several Matlab assisted teaching scenarios were discussed.The teaching practice proves that the demonstration platform does not only enhance the students’ understanding of the basic principles and knowledge of speech signal processing, but also improve their hands-on problem-solving and analysis ability.