Abstract:Multi-sided public platforms are emerging in the era of platform, so research on the principle of the structure and so on is necessary. Muti-sided public platform, differing from traditional production platform or technology platform, has excellent social network structure and efficiency advantage, which could support the functions of reducing transaction cost, and promoting cooperative governance and service innovation. The basic characteristics of the social network structure lie in openness of governance power, sharing of resources and interaction and cooperation of the groups. Drawing is the best way to describe platform structure. On the basis of the elements analysis and reference on the business ecosystem structure, the models of participant network, value network and operation network of multi-sided public platforms are constructed.