The scoliosis evaluation system comprises a 3D sensor (100) that takes the back of a subject and acquires the 3D data thereon a characteristic part designator (102) that designates a characteristic part of which the degree of curvature is to be measured on the back of the subject, an uneven state detector (103) that detects an uneven state of a body surface in a horizontal direction based on the 3D data on the characteristic part designated by the characteristic part designator, and a display monitor (200) that displays a result detected by the uneven state detector.
