Elevator system and elevator control method

The invention provides an elevator system and an elevator control method, which can prevent the elevator from being trapped due to the fact that the remaining power of a battery is reached under the condition that power is supplied from a vehicle such as an electric vehicle in the elevator system. An elevator system is provided with: a power supply input unit (301) that supplies power from a charging/discharging device (2) for charging a battery-mounted vehicle; a transmission/reception unit (302) that communicates with the charging/discharging device (2); and an elevator control unit (303) that, when power supply from the battery-mounted vehicle is started, receives an operation command signal transmitted from the charging/discharging device by means of the transmitting/receiving unit (302) when the remaining charge amount of the battery mounted on the battery-mounted vehicle is the remaining charge amount capable of driving the elevator system for a certain period of time. 本发明提供一种电梯系统以及电梯控制方法，在电梯系统中进行来自电动汽车