The invention is suitable for the technical field of communication, and provides a
payment system and method for oil product cost. The
system comprises oil engine equipment which comprises at least one oil gun, a master control
server and at least one movable settlement terminal, wherein the oil engine equipment is used for refueling a vehicle, and sending
transaction data to the master control
server after the vehicle finishes refueling, wherein the
transaction data comprises oil gun identification and a transaction amount; the master control
server is used for receiving the transaction datasent from the oil engine equipment, and sending the transaction amount to the movable settlement terminal corresponding to the oil gun identification; and the at least one movable settlement terminalis used for outputting the transaction amount, and executing transaction settlement according to the operation of a user. Therefore, a car owner does not need to get off to pay the transaction amounton a cashier
desk; in addition, when more refueling cars are in the presence, the car owner does not need to
queue up, so that operation is simple, user time is saved, user experience is improved, a situation of fleeing without paying can be avoided to a certain degree; and for a gas
station, management can be enhanced, and the refueling efficiency of the gas
station is improved.