On the basis of analyzing and summarizing the distribution and use of the building automation system at home and abroad on the status quo, based on distribution automation to enhance the practical application of the requirements put forward to support the deployment of the integration of new distribution automation repair master system architecture designed to support distribution Network operation Control and repair scheduling integrated applications; new distribution automation system master key technologies, with regard to the frequent changes in the status of the distribution network is proposed based debugging system architecture diagram distribution automation module transaction management implementation model to improve distribution Network Equipment transaction management efficiency; proposed distribution based on the master and the terminal IEC61968 and IEC61850 models of self-identification and mapping technology for remote debugging technology, efficient mass distribution terminal debugging; splicing technology is proposed based on a business model with adjustment full integration of the global grid modeling and decision analysis methods to achieve convergence with the sum of the power grid analysis applications based on real time measurements, near real-time data, historical data, multi-dimensional data. Based on the design, the development of D5200 distribution network operation control and management system, the system in Suzhou, The application shows the idea feasible design techniques, correct.