A method for providing a multimedia service, characterized by comprising the steps of: receiving, by a POS apparatus, information about a multimedia service from an operator server; displaying, by the POS apparatus, the information about the multimedia service; receiving, by the POS apparatus, a serving request operation about a multimedia service from a RFID-SIM card installed in a mobile terminal, wherein receiving a serving request operation about a multimedia service from a RFID-SIM card installed in a mobile terminal comprises: sending, by the POS apparatus, the information about the multimedia service via a receiving unit of the RFID-SIM card to the RFID-SIM card; storing, by the RFID-SIM card, the information about the multimedia service received into a random access memory, RAM, of the RFID-SIM card, and reading, by the mobile terminal installed with the RFID-SIM card, the information about the multimedia service from the RAM to generate a serving menu for user selection; and acquiring by the RFID-SIM card in the mobile terminal the selection of a user made for the multimedia service according to the information about the multimedia service, and sending, by the RFID-SIM card, via a sending unit of the RFID-SIM card the serving request operation about the multimedia service selected by the user to the POS apparatus; and generating, by the POS apparatus, an instruction according to the serving request operation and sending a response about the instruction to the RFID-SIM card, wherein the step of sending a response about the instruction to the RFID-SIM card comprises sending, by the POS apparatus, via a receiving unit of the RFID-SIM card a data file corresponding to the multimedia service selected by the user to the RFID-SIM card, which is automatically set, by the mobile terminal, on the mobile terminal, wherein the data file includes an image or music received via the POS apparatus from the operator server by manner of wireless internet. receiving, by a POS apparatus, information about a multimedia service from an operator server; displaying, by the POS apparatus, the information about the multimedia service; receiving, by the POS apparatus, a serving request operation about a multimedia service from a RFID-SIM card installed in a mobile terminal, wherein receiving a serving request operation about a multimedia service from a RFID-SIM card installed in a mobile terminal comprises: sending, by the POS apparatus, the information about the multimedia service via a receiving unit of the RFID-SIM card to the RFID-SIM card; storing, by the RFID-SIM card, the information about the multimedia service received into a random access memory, RAM, of the RFID-SIM card, and reading, by the mobile terminal installed with the RFID-SIM card, the information about the multimedia service from the RAM to generate a serving menu for user selection; and acquiring by the RFID-SIM card in the mobile terminal the selection of a user made for the multimedia service according to the information about the multimedia service, and sending, by the RFID-SIM card, via a sending unit of the RFID-SIM card the serving request operation about the multimedia service selected by the user to the POS apparatus; and sending, by the POS apparatus, the information about the multimedia service via a receiving unit of the RFID-SIM card to the RFID-SIM card; storing, by the RFID-SIM card, the information about the multimedia service received into a random access memory, RAM, of the RFID-SIM card, and reading, by the mobile terminal installed with the RFID-SIM card, the information about the multimedia service from the RAM to generate a serving menu for user selection; and acquiring by the RFID-SIM card in the mobile terminal the selection of a user made for the multimedia service according to the information about the multimedia service, and sending, by the RFID-SIM card, via a sending unit of the RFID-SIM card the serving request operation about the multimedia service selected by the user to the POS apparatus; and generating, by the POS apparatus, an instruction according to the serving request operation and sending a response about the instruction to the RFID-SIM card, wherein the step of sending a response about the instruction to the RFID-SIM card comprises sending, by the POS apparatus, via a receiving unit of the RFID-SIM card a data file corresponding to the multimedia service selected by the user to the RFID-SIM card, which is automatically set, by the mobile terminal, on the mobile terminal, wherein the data file includes an image or music received via the POS apparatus from the operator server by manner of wireless internet.