At present, network, computer and information technology have developed rapidly, which provide technical supports for medical imaging and enable medical imaging teaching to enter a new stage. As the medical imaging teaching process has certain particularity, we can apply the network media technology in teaching in accordance with its specific features, so as to greatly improve the teaching quality. This article firstly introduces the medical imaging teaching and network media technology, and further provides a detailed analysis of the positive role of reasonable application of network media technology in teaching process. It can greatly raise teaching standard and promote teaching reform.