Analysis platform of transmission and distribution network is a important tool to improve the distribution platform distribution grid management level, and distribution of power grid system analysis and simulation. The analysis platform of transmission and distribution network was developed by using, the distributed architecture. Distributed technology CORBA,.NET Remoting, Web Service was complex, the application was limited. The platform structure was analyzed, and the principle of the technology of WCF was summarized, the distribution platform with power grid data interface general requirement, data interface model was built, WCF server and client test procedures was unitlen the WCF technology established distribution grid analysis platform of distributed is feasibility.