A straightening apparatus for a vehicle, including: a frame, a lifting device fastened to the frame, a straightening table which is fastened to the lifting device and which has, on its sides, platforms (5a1, 5a2, 6, 8a1, 8a2, 5, 8) onto which the vehicle may be moved for the straightening work, and anchor beams (4a1, 4a2, 4a3, 4a4, 4) and fasteners fastened to the anchor beams (4a1, 4a2, 4a3, 4a4, 4) for fastening the vehicle to the straightening table for the straightening work, wherein the fasteners include fastener frames (12a1, 12a2, 13a1, 13a2, 12) that are fastened to the anchor beams (4a1, 4a2, 4a3, 4a4, 4) movably in the longitudinal direction of the straightening table, the anchor beams (4a1, 4a2, 4a3, 4a4, 4) being fixedly fastened in the gaps between the platforms (5a1, 5a2, 8a1, 8a2, 5, 6, 8) on the sides of the straightening table so that the platforms (5a1, 5a2, 8a1, 8a2, 5, 6, 8) together with the anchor beams (4a1, 4a2, 4a3, 4a4, 4) form a driving platform along which the vehicle may be driven onto the straightening table, and beams (9a1, 9a2, 9a3, 9a4) at the front part of the straightening table, and support devices (10a1, 10a2, 10) which are settable at vehicle wheels that are between the beams (9a1, 9a2 and 9a3, 9a4) at the front part of the straightening table when the straightening table is lifted to the working height and, the support devices being placed under the wheels, arranged to support the wheels as the straightening table is lowered so that free space remains between the vehicle bottom and the straightening table to fasten the fasteners to the anchor beams (4a1, 4a2, 4a3, 4a4, 4). a frame, a lifting device fastened to the frame, a straightening table which is fastened to the lifting device and which has, on its sides, platforms (5a1, 5a2, 6, 8a1, 8a2, 5, 8) onto which the vehicle may be moved for the straightening work, and anchor beams (4a1, 4a2, 4a3, 4a4, 4) and fasteners fastened to the anchor beams (4a1, 4a2, 4a3, 4a4, 4) for fastening the vehicle to the straightening table for the straightening work, wherein the fasteners include fastener frames (12a1, 12a2, 13a1, 13a2, 12) that are fastened to the anchor beams (4a1, 4a2, 4a3, 4a4, 4) movably in the longitudinal direction of the straightening table, the anchor beams (4a1, 4a2, 4a3, 4a4, 4) being fixedly fastened in the gaps between the platforms (5a1, 5a2, 8a1, 8a2, 5, 6, 8) on the sides of the straightening table so that the platforms (5a1, 5a2, 8a1, 8a2, 5, 6, 8) together with the anchor beams (4a1, 4a2, 4a3, 4a4, 4) form a driving platform along which the vehicle may be driven onto the straightening table, and beams (9a1, 9a2, 9a3, 9a4) at the front part of the straightening table, and support devices (10a1, 10a2, 10) which are settable at vehicle wheels that are between the beams (9a1, 9a2 and 9a3, 9a4) at the front part of the straightening table when the straightening table is lifted to the working height and, the support devices being placed under the wheels, arranged to support the wheels as the straightening table is lowered so that free space remains between the vehicle bottom and the straightening table to fasten the fasteners to the anchor beams (4a1, 4a2, 4a3, 4a4, 4).