The invention discloses an intelligent equipotential connection device for a subway platform door. A train rail and a platform door are connected together through a remote control actuator to form a control device for platform door equipotential connection. The intelligent equipotential connection device for the subway platform door comprises a control cabinet, the actuator, a rail equipotential connection pile, a platform door equipotential connection pile, a grounding terminal and a platform door central control panel. The control cabinet is connected with the platform door central control panel and the actuator. A logic unit of the control cabinet and the central control panel are connected with a control switch and status indicator lamps of the control cabinet. A main contact of the actuator is connected with the rail equipotential connection pile, the platform door equipotential connection pile and the grounding terminal, and an auxiliary contact of the actuator is connected withthe control cabinet. By applying the intelligent equipotential connection device for the subway platform door, rapid switching of a plurality of equipotential connection modes is realized, a more reasonable equipotential connection mode can be selected according to the working conditions such as real-time passenger flow and the thermal insulation performance of the platform door, so as to protectthe safe of passengers waiting and getting on and off.