Provided is an elevator evacuation supporting system which can appropriately guide people living in a building to the hall of an elevator in the case of occurrence of a disaster. For this purpose, the elevator evacuation supporting system includes an elevator provided in a building, an evacuation operation device which, in the case of occurrence of a disaster in the building, selects service floors of the elevator from floors of the building according to the disaster condition of the building, and causes the elevator to perform an evacuation operation for ascent and descent between the service floors, a passage indication device provided in a passage leading to a hall of the elevator, and an escape routes display device which, during the evacuation operation of the elevator, causes the passage indication device provided in a passage leading to a hall of the elevator of the service floor to indicate escape routes to the hall of the elevator of the service floor according to the disaster condition of the service floor.