Although mobile device healthcare (MDH) industry is developing fast, people do not have a deep understanding of its value chain, and further, its business model. In this paper, I analyse the development of The MDH industry in China, then clarify the total market scale of MDH. Based on these, I discuss key segments in the value chain of MDH industry and unveil the business model of MDH firms. After that, the change brought by the mobile devices for the traditional healthcare industry is investigated. Finally, six cases of MDH firms in China are raised and discussed in detail.