An automatic selected human portion identification and adjustment device (200, 200a) for medical treatment equipment (100) is disclosed, in which an automatic selected human portion identification and adjustment device (200, 200a) is included in the medical treatment equipment (100). The automatic selected human portion identification and adjustment device (200, 200a) includes a depth camera (5), an image characteristic identification unit (8), and an X-ray detector (2) position adjustment mechanism. The image characteristic identification unit (8) performs image characteristic comparison between an instant image pixel depth signal (S1) with a predetermined image pixel depth signal (61) for identification and generates, in response thereto, an X-ray detector position adjustment signal (S2). Then, the X-ray detector (2) position adjustment mechanism drives the X-ray detector (2) to move in order to adjust the X-ray detector (2) to correspond to the predetermined human body portion of a target human body (3).
