The invention discloses a system for estimating a distributive state of an intelligent transformer station. The system comprises a scheduling center state estimation platform and a distributive state estimation plant terminal platform, and the distributive state estimation plant terminal platform comprises a transformer station real-time database, a transformer station graphic topology analysis module, a transformer station state estimation module and a distributive state estimation database. The transformer station graphic topology analysis module carries out transformer station topology analysis on station internal remote signaling on the basis of a power grid model static database maintained at a station terminal, relationship of topology connection and node device connection of station internal switch nodes and device parameters to form transformer station internal system topology; the transformer station state estimation module carries out transformer station state estimation on the station internal telemetry information and calculates credibility quality grade of information; and the distributive state estimation database is used for transmitting measurement data to a scheduling center state estimation real-time database through a transformer station communication server and a scheduling data network and simultaneously receiving information of the scheduling center state estimation real-time database. According to the system for estimating the distributive state of the intelligent transformer station, disclosed by the invention, the reliability and the accuracy of transformer station basic data can be improved, and the processing on secondary information defects is accelerated.