Plug device for controlling airplane power supply unit

The utility model relates to the technical field of power supply plugs and particularly relates to a plug device for controlling an airplane power supply unit. The device comprises a plug housing and a connecting cable. The device is characterized in that the connecting cable consists of a middle frequency cable and a control cable, a middle frequency connector is arranged in the plug housing, a button and an indicating lamp are arranged on the plug housing, cable inserting holes are arranged on the connection end face of the plug housing and the connecting cable, the middle frequency cable and the control cable are inserted in the plug housing via cable inserting holes respectively, the middle frequency cable is connected to the middle frequency connector in the plug housing, the control cable is connected to a wiring button and the indicating lamp on the plug housing respectively, the button and the control cable on the plug are used for controlling the receiving and releasing of cables and starting and sto