1. A method for acquiring a PET image with ultra high resolution using movement of a PET device, comprising: (a) a driving member 30 driving the PET device by a driving control unit 100 ; (b) performing sampling p times for respective detectors 11 by driving of the PET device, and a PET signal receiving unit 200 receiving a plurality of PET data; (c) an image reconstructing unit 300 acquiring the PET data acquired from the PET signal receiving unit 200 , and acquiring position information of the PET device from the driving control unit 100 ; and (d) the image reconstructing unit 300 reconstructing an image using the acquired PET data and the position information.