On urban distribution network fault location has low automatic degree and the date of the system is insufficient. From the perspective of data fusion, through internal private network to fusion the date of scheduling management system, SCADA system, fusion terminal and user data acquisition system, developed based on multi-dimensional information fusion to the distribution network of active fault system. The system can be divided into foreground operation interface and the background server, which can complete the fault location, isolation and distribution network reconfiguration of the distribution network. The foreground operation interface is based on Visual C ++6.0 development environment, which modularized each function part.And the background server is realized by the database system which is developed based on JAVA Web technology. The system is easy to operate, reliable operation, strong applicability, good expansibility, easy to be promoted in the province, the development of distribution automation has practical engineering significance, has been in a local trial operation, the effect is good.