Application of multimedia technology in the teaching of university physics is a certainly tendency, multimedia teaching as a new model is adopted by many teachers of university, which is beneficial supplement in the traditional teaching, but it usually appears some problems and imperfection, such as teaching contents, teaching rhythm, teaching methods. If gain satisfied teaching effect, we must realize the imperfection of multimedia technology in the teaching, then improve the imperfection by enhancing PowerPoint, controlling the teaching rhythm, combining the model between traditional teaching and multimedia teaching.