According to the demands of urban core area of distribution network of Tianjin， based on the application of several communication means to realize the access layer network communication， the distribution supervisory control and data acquisition（SCADA） function， centralized feeder automation and intelligent distributed feeder automation function have been implemented. Integration with electric business information with information exchange bus based on IEC 61968/IEC 61970 international standard， power distribution business process extension to power utilization business to realize the interaction of the application have been put forward. In the implementation of the construction process， the whole plant type of rotation to an equipment modification method and the super capacitor used as backup power in distribution terminal have been put forward to ensure that the power distribution automation is practical and extensible.