The utility model discloses a join in marriage grid voltage quality monitor platform, including the control system of main website, reverse osmosis cavity, power distribution station control system and terminal detection device and user info collection system, user info collection system with join in marriage power station control system and be connected, terminal detection device's one end and field device are connected, the other end through the GPRS passageway with join in marriage power station control system and be connected, it is provided with reverse osmosis cavity to join in marriagebetween power station control system and the control system of main website, wherein, terminal detection device for the feeder voltage and the distribution voltage of detection field equipment, join in marriage power station control system for coordinated control field device's feeder voltage and distribution are pressed, the control system of main website for coordinated control busbar voltage. Adopt the utility model discloses, improve quality of supply.