An RF secure communication system, wherein said RF secure communication system comprises: a radio frequency apparatus, comprising at least one RF transceiver module, at least one RF antenna, at least one magnetic induction and receiver module which is capable of sensing a magnetic field and detecting change information of the magnetic field, and at least one microcontroller; wherein said at least one RF transceiver module is electrically connected to the at least one RF antenna and the at least one microcontroller, respectively, wherein said microcontroller is adapted for processing transceived RF information; wherein said magnetic induction and receiver module is electrically connected to the at least one microcontroller, and wherein said microcontroller is adapted for processing change information of the magnetic field; an RF card reader, comprising at least one RF transceiver module, at least one RF antenna, and at least one microcontroller; wherein said at least one RF transceiver module is electrically connected to the at least one RF antenna and the at least one microcontroller, respectively, and said microcontroller is adapted for processing the transceived RF information; wherein the RF card reader further comprises at least one magnetic transmission module for generating and transmitting an induction magnetic field, wherein said magnetic transmission module is electrically connected to the at least one microcontroller, and wherein said magnetic transmission module is capable of transmitting a magnetic field based on an instruction information from the microcontroller; characterized in that range control is performed through a magnetic field, wherein identity authentication is performed through a magnetic field and radio frequency, and wherein information communication is performed through radio frequency between the RF apparatus and the RF card reader; and the RF apparatus configured for sending corresponding RF information to the RF card reader through an RF channel based on an instruction information obtained by demodulation of said detected change information; and configured for performing information communication through radio frequency with the RF card reader, if identity authentication is verified by the RF card reader based on the RF information; said system further configured such that otherwise, no operation is performed. a radio frequency apparatus, comprising at least one RF transceiver module, at least one RF antenna, at least one magnetic induction and receiver module which is capable of sensing a magnetic field and detecting change information of the magnetic field, and at least one microcontroller; wherein said at least one RF transceiver module is electrically connected to the at least one RF antenna and the at least one microcontroller, respectively, wherein said microcontroller is adapted for processing transceived RF information; wherein said magnetic induction and receiver module is electrically connected to the at least one microcontroller, and wherein said microcontroller is adapted for processing change information of the magnetic field; an RF card reader, comprising at least one RF transceiver module, at least one RF antenna, and at least one microcontroller; wherein said at least one RF transceiver module is electrically connected to the at least one RF antenna and the at least one microcontroller, respectively, and said microcontroller is adapted for processing the transceived RF information; wherein the RF card reader further comprises at least one magnetic transmission module for generating and transmitting an induction magnetic field, wherein said magnetic transmission module is electrically connected to the at least one microcontroller, and wherein said magnetic transmission module is capable of transmitting a magnetic field based on an instruction information from the microcontroller; characterized in that range control is performed through a magnetic field, wherein identity authentication is performed through a magnetic field and radio frequency, and wherein information communication is performed through radio frequency between the RF apparatus and the RF card reader; and the RF apparatus configured for sending corresponding RF information to the RF card reader through an RF channel based on an instruction information obtained by demodulation of said detected change information; and configured for performing information communication through radio frequency with the RF card reader, if identity authentication is verified by the RF card reader based on the RF information; said system further configured such that otherwise, no operation is performed.