▎ 摘　　要

NOVELTY - The utility model claims a subway third rail heating defrosting device, comprising a central control terminal, a plurality of station control terminal, a plurality of centralized control cabinet, a plurality of unit control box and a plurality of graphene heating belt, the central control terminal is set in the scheduling centre; a plurality of station control terminals are respectively set on each station, the station control terminal and the central control terminal are connected by the station communication channel, a plurality of centralized control cabinets interval set beside the third rail, the centralized control cabinets are connected through the optical fibre communication channel; a plurality of unit control box interval set between the two third rails, each ten adjacent unit control box is connected with one of the centralized control cabinet; a plurality of graphene heating belt sections are set on the third rail, each four graphene heating belts are connected to form a heating section, the heating sections are respectively connected with the corresponding unit control box.