The utility model relates to a feeder pillar side low -voltage distribution monitoring devices, characterized by, including electricity quantity acquisition module, electricity quantity acquisition module passes through carrier communication module and connects CPU control module, still include power module, power module provides power supply, still include split type current transformer, split type current transformer connects power line through the puncture fastener, and split type current transformer also connects CPU control module through carrier communication module. The utility model discloses can realize each branch line running state's of low -voltage power supply network real -time supervision. Support for platform district's initiative fortune dimension provides data, improve power supply quality of the power grid.