The invention discloses a radio-frequency tracking, positioning and monitoring system comprising a control center (1), an activator (2), a receiver (3) and an electronic tag (4), wherein the control center (1) comprises a main control module (10), a prison management database (11), an authority limit setting module (12), an electronic map module (13), a personnel monitoring module (14) and a basic setting module assembly which are respectively connected with a power supply module (19); the prison management database (11), the authority limit setting module (12), the electronic map module (13), the personnel monitoring module (14) and the basic setting module assembly are respectively connected with the main control module (10); and one ends of the activator (2) and the receiver (3) are both connected with the main control module (10), and the other ends of the activator (2) and the receiver (3) are both in wireless connection with the electronic tag (4). The invention simultaneously provides a radio-frequency tracking, positioning and monitoring method carried out by utilizing the system.