First, explain demonstration model based on multimedia classroom. This teaching model, make the traditional teaching of multimedia network teaching process, the teacher closely integrated teaching contents according to the teaching goal, puts forward the multimedia system various types of teaching content by courseware, graphics, animation, video image and sound form, vivid images. The students understand these vivid perceptual materials, formulate appropriate feedback. In this model, according to the needs of teaching, teachers can supplement make those extracurricular materials to save the time of writing on the blackboard, increase the amount of information, and the focus of teaching can repeat, so as to improve the teaching effect.