Radio frequency card reader, radio frequency module and radio frequency communicating method

The invention provides a radio frequency card reader, a radio frequency module and a radio frequency communicating method. The radio frequency card reader comprises a first radio frequency antenna, a first radio frequency chip and a first controller, the first radio frequency chip is controlled by the first controller, periodical handshaking communication is conducted between the first radio frequency antenna and the radio frequency module arranged on an intelligent card read-write device, and when communication between the first radio frequency antenna and the radio frequency module arranged on the intelligent card read-write device is abnormal, the phenomenon that the intelligent card read-write device is far away from a set zone can be rapidly determined. According to the radio frequency card reader, the radio frequency module and the radio frequency communicating method, periodical communication can be conducted between the radio frequency card reader and the radio frequency module arranged on the intelligent card read-write device, and when communication between the radio frequency card reader and the radio frequency module arranged on the intelligent card read-write device is abnormal, the phenomenon that the intelligent card read-write device is far away from the set zone can be rapidly determined. Therefore, read-write operation conducted on an intelligent card can be stopped rapidly by the intelligent card read-write device and the read-write safety of the intelligent card and the read-write device can be guaranteed.