Rfid sensor tag supporting dual mode logging, rfid sensor reader and method for controlling rfid sensor tag

Disclosed are an RFID sensor tag supporting dual mode logging, an RFID sensor reader, and a method for controlling the same. The RFID sensor tag according to an embodiment of the present invention supports a dual mode executing a scheduling logging mode which records sensing data at preset intervals and an alarm event logging mode which records the sensing data under a preset alarm condition, and comprises a control unit which records the sensing data in a memory during operation of the corresponding mode; and the memory which has sensing data recording regions separated by mode.