Bidirectional metering socket and system

The invention provides a bidirectional metering socket and a system. The bidirectional metering socket comprises an electrical energy input port, an electrical energy output port, a bidirectional metering unit, a carrier communication unit, a central processing unit and a wireless communication unit, wherein the electrical energy input port is used for receiving power supply energy transmitted byexternal power generation equipment through a power wire; the electrical energy output port is used for transmitting the power supply energy to an external electrical appliance; the bidirectional metering unit is used for metering the power supply quantity of the power supply energy input by the electrical energy input port and metering the power consumption of the power supply energy output by the electrical energy output port; the carrier communication unit is used for receiving power supply information transmitted by the external power generation equipment through the power wire; the central processing unit is used