To provide an emergency power transmission control system in a parking which allows electric power discharged from an accumulator battery of an electric vehicle parked in the parking to be transmitted to the exterior parts in emergency situations such as disaster occurrences.

An emergency power transmission control system 50 which is used in a parking and for transmitting electric power discharged from an accumulator battery of an electric vehicle parked in the parking to predetermined facilities in emergency situations. The emergency power transmission control system 50 includes a charging and discharging control part 55b that determines whether or not an emergency, which requires power transmission to predetermined facilities to be conducted, occurs and performs control to transmit the electric power discharged from the accumulator battery of the electric vehicle parked in the parking to the predetermined facilities when the occurence of the emergency is determined.