To facilitate oiling operation at a gas station.

A meter control system controls a meter 30 according to oil information transmitted from a portable terminal unit 10. The meter control system comprises the portable terminal unit 10 which transmits oil information to a POS system 20, the POS system 20 which is connected to the meter 30, generates oil indicative data based on the oil information, and transmits the oil indicative data to the meter 30, and the meter 30 which opens a nozzle corresponding to a nozzle number included in the oil instruction data when receiving the oil indicative data.