Positioning method and system

The invention is applicable to the field of medical equipment and provides a positioning method. The positioning method comprises the following steps: acquiring a video image by a camera mounted on a high-end lens device, calculating an imaging area of X rays transmitted by a beam splitter mounted on the heigh-end lens device, and acquiring the central position of the imaging area; displaying the video image and the imaging area according to a preset display manner, receiving a shooting instruction, and acquiring a target shooting area in the shooting instruction; and calculating a motion track of the high-end lens device according to the target shooting area and the central position, and controlling the high-end lens device to move along the motion track, so that the central position is positioned to the target shooting area. According to the positioning method disclosed by the embodiment of the invention, medical personnel can observe whether the shooting position is appropriate through the displayed video