A maintenance support system includes a wearable device that provides an on-site maintenance worker with maintenance instruction information; a plurality of maintenance support terminals installed in a plurality of regions having time differences; and a maintenance management server connected to the wearable device and the maintenance support terminals. The maintenance management server includes a representative selection unit that selects a maintenance support terminal on the basis of representative level information, the standard work hours being fixed for each of the plurality of regions; and a translation unit that translates audio information transmitted and received between the wearable device and the maintenance support terminal selected by the representative selection unit on a basis of a language set on the wearable device and a language set on the maintenance support terminal selected by the representative selection unit.