A power supply control device for a system having two or more power supply devices, configured to control a first power supply device that includes a compensation device configured to perform power compensation at a time of power failure, the power supply control device includes a controller configured to limit the power compensation of the compensation device in a normal state, and release the limitation on the power compensation of the compensation device if detecting power failure of the first power supply device and detecting power failure of a second power supply device provided redundantly in addition to the first power supply device.