Multimedia technology is a information technology which comprehensively processes and controls information in form of text, graph, image, automation and sound. With the development of multimedia information technology, network teaching has played a significant role in modern teaching owe to its characterizations such as digit-orientation, information-orientation, massive amount of information, high interactivity, and wide coverage. This technology has become an indispensable auxiliary teaching approach, promoting the deep reform of education. However, the development of network education function is still immature. Moreover, the major of art design is a unique major focusing on innovation thinking, cultivation of innovation consciousness, encouraging students to experience, explore and rethink. Therefore, the resources for art-design network teaching is insufficient. On this basis, it is of great significance to apply multimedia technology to art-design course teaching, give full play the advantage of multimedia courseware, and enhance the scientization, professionalization and individualization of art-design education. This paper first introduces the research background and current status, then discusses the design methods of network multimedia courseware. The designing and making of art-design network teaching courseware is a key point for the construction of network teaching environment. The study on network teaching courseware designing and making is a necessity for deep reform of art-design as well as an important approach for exploring new development direction of art-design teaching.