On-line course design and development of modern education technology has become an important field of study. It can effectively improve teachers' education technology application in teaching activities, especially for teachers' self-consciousness in classroom teaching with good education technology plays very good effect in the large scope, and greatly promote the teaching level and can improve teaching efficiency. Virtual Reality Technology is a specialized course of education technology，which introduces using computer technology to simulate the motion of objects and audio-visual presentation. From the basic model of network teaching，discuss the present situation and existing problems of On-line course，sum up the characteristics of On-line course，and introduce the key technologies using during the design process. The on-line course in this article is programmed by ASP.NET, ACCESS is selected as the database system. Students can obtain teaching resources from this website, and teachers can manage the course by the homework management modular and communicate with the students by online communication modular.
Keywords：On-line course, The network teaching, Autonomous learning
