The fusion of the manufacturing industry, next-generation Internet, and information technologies is catalyzing the development of industrial Internet. The importance of developing the industry Internet platform (IIP) is recognized not only by leading international manufacturers, but also by people involved in framing China’s manufacturing strategies. In this paper, the development trends of IIP are elaborated and the challenges in building the client-ecosphere, developer-ecosphere, as well as the data-ecosphere of IIP are analyzed. Furthermore, the technical challenges of IIP in modeling and analyzing industry big data system and industry data are discussed in depth.