The present invention provides a multi-system multi-band RFID antenna, which comprises an on-chip antenna and at least one external antenna, wherein the on-chip antenna is arranged on RFID chip; the external antennas are arranged outside the RFID chip; and the RFID chip is provided with connection pads on the outer surface, wherein both the on-chip antenna and the external antennas are connected with the RFID chip through the connection pads. According to the multi-system multi-band RFID antenna of the present invention, the RFID chip can provide appropriate antennas for applications in different systems with different frequency bands, and can satisfactorily meet the need for RFID multi-system integration applications in the future.