The digital campus project has become an important part of the campus information construction. This paper proposes a realization plan of information platform of deep development and utilization for digital campus based on Web Services and SOA on the analysis of problems of digital campus construction. It introduces the platform based on SOA and the realization of data exchange platform facing Web, and provides the example for service encapsulation. The whole plan with good encapsulation, expansibility and loose coupling solves the problem of utilization and sharing of campus resources.