Disclosed are a method and apparatus for controlling and monitoring a position of a radiation treatment system, the method of controlling the position of the radiation treatment system, including: capturing a first image of a patient on a first axis and a second axis using a first camera and capturing a second image of the patient on the second axis and a third axis using a second camera acquiring a third image of the patient captured using the first camera and a fourth image of the patient captured using the second camera during previous radiation treatment and controlling a position of the patient to compensate for the calculated first position change based on the first image and the third image and the calculated second position change based on the second image and the fourth image.
