A discharging apparatus for an electric vehicle, comprising: an AC charging interface; a charging connection device, having a first terminal connected with the AC charging interface and a second terminal connected with an exterior equipment, configured to transmit an AC output from the AC charging interface to the exterior equipment, and comprising a charging gun and a multi-plug socket; an instrument, configured to send a discharging preparation instruction after receiving a trigger signal; a controller, configured to communicate with the instrument and to detect whether the charging connection device is connected with the AC charging interface after receiving the discharging preparation instruction, and if yes, to switch to an external discharging mode; a battery manager, configured to communicate with the controller and to control an external discharging circuit in a high-voltage distribution box of the electric vehicle to be connected after the controller switches to the external discharging mode; a power battery, connected with the high-voltage distribution box and configured to provide a DC via the external discharging circuit in the high-voltage distribution box; wherein the controller is configured to convert the DC provided by the external discharging circuit into the AC and to output the AC to the AC charging interface so as to discharge to the exterior equipment, when the electric vehicle is in OK gear with P gear, the instrument starts to serve, when the controller is in service, it is first determined whether there is an electric vehicle gear signal, if yes, the electric vehicle enters a driving mode; and if no, the controller detects a CC signal to determine whether the charging gun is connected to the vehicle; if the electric vehicle is not in P gear and the motor is not in undriving mode when the CC signal is detected, a message indicating "forbid external discharge" is sent to the instrument, and if the electric vehicle is in P gear and the motor is in undriving mode when the CC signal is detected, the controller switches the internal circuit thereof to the external discharging mode. an AC charging interface; a charging connection device, having a first terminal connected with the AC charging interface and a second terminal connected with an exterior equipment, configured to transmit an AC output from the AC charging interface to the exterior equipment, and comprising a charging gun and a multi-plug socket; an instrument, configured to send a discharging preparation instruction after receiving a trigger signal; a controller, configured to communicate with the instrument and to detect whether the charging connection device is connected with the AC charging interface after receiving the discharging preparation instruction, and if yes, to switch to an external discharging mode; a battery manager, configured to communicate with the controller and to control an external discharging circuit in a high-voltage distribution box of the electric vehicle to be connected after the controller switches to the external discharging mode; a power battery, connected with the high-voltage distribution box and configured to provide a DC via the external discharging circuit in the high-voltage distribution box; wherein the controller is configured to convert the DC provided by the external discharging circuit into the AC and to output the AC to the AC charging interface so as to discharge to the exterior equipment, when the electric vehicle is in OK gear with P gear, the instrument starts to serve, when the controller is in service, it is first determined whether there is an electric vehicle gear signal, if yes, the electric vehicle enters a driving mode; and if no, the controller detects a CC signal to determine whether the charging gun is connected to the vehicle; if the electric vehicle is not in P gear and the motor is not in undriving mode when the CC signal is detected, a message indicating "forbid external discharge" is sent to the instrument, and if the electric vehicle is in P gear and the motor is in undriving mode when the CC signal is detected, the controller switches the internal circuit thereof to the external discharging mode.