This paper will put forward a design scheme of social networking service platform based on Struts2 technology. Through the design of use-case model, the application of Struts2 technology based on the design mode of MVC, and the research of use-case implementation algorithms, the design scheme proposed in this paper can make clear logical division to the platform structure and effective separation for three-tier logical structure. It does not only provide a reference example for the design of the networking application platform based on the mainstream framework technology, but also a technical and analytical condition for formulating the business decisions of social networking service platform.