From the second phase imparting to Bell-Lancaster system and then to peer teaching, the connotation and representation pattern of monitorial system was changing constantly. Monitori- al system is a kind of teaching model under the circumstance of network education. It is learner-cen- tered and based on cooperative learning as the foundation. Under the model, students can help and learn from each other. The application of monitorial system in network education effectively re- solves some problems such as synchronization of teaching and learning during the teaching process, and extension of onli...