Switching control box and charging parameter confirmation method

The invention provides a switching control box and a charging parameter confirmation method, and relates to the technical field of charging control, the switching control box is connected between a charging pile and an electric vehicle. The switching control box comprises a first charging port, which is connected with the electric vehicle, and comprises a data transmission end, an auxiliary power supply output end, a first connection confirmation end, a second connection confirmation end, a first grounding end; a second charging port, which is connected with the charging pile and comprises a third connection confirmation end, a control confirmation end and a second grounding end; a first controller and a second controller, which are connected between the first charging port and the second charging port; a first controller, which is in controller area network (CAN) message communication with the electric vehicle through the data transmission end; and a second controller, which carries out power line carrier PL