A new practical teaching mode which is different from the past is put forward in this paper. The teaching is carried out from the aspects of searching for information, participating in teaching, discussion, designing experiments and summarizing cutting-edge scientific problems by students, so that they can learn actively and become the leader of learning. The assessment is also composed of above parts in which students also participate. This practice teaching mode can realize online practice teaching. On the one hand, this practical teaching connects theory and practice closely through frontier scientific problems and practical knowledge. On the other hand, through the full participation of students, it can promote their autonomous learning, improves their interest in learning, and stimulates their learning motivation.