Equipment power supply control device and method

The invention discloses an equipment power supply control device and method, and solves the problem that a separated cabin section needs to be additionally equipped with a power supply system after the cabin section of an aircraft is separated. An equipment power supply control device comprises a main battery, an ignition battery, a switch, a main battery information detection module and a switch control module. And the main battery and the ignition battery are used for supplying power to a load. And the switch is used for opening and closing the connection between the ignition battery and the load. The main battery information detection module is used for detecting power supply state information of a main battery and sending the power supply state information to the switch control module. And the switch control module is used for receiving the power supply state information of the main battery and/or a control instruction sent by the aircraft system, and controlling on and off of a switch. According to the a