The utility model provides a device for being directed at arc forging carries on orthopedicly, including base (1), bearing roller (2), time base (3), first slider (4), second slider (6), last base (7) and crossbeam (8). The centre of a circle of many rhizophores roller (2) on base in the cross section (1) lies in the bellied circular arc line of presetting that makes progress, first slider (4) and lower base (3) the sliding connections who lies in base (1) both ends, crossbeam (8) both ends fixed mounting of base (1) top has last base (7), second slider (6) and last base (7) sliding connections, and the binding face of second slider (6) and first slider (4) is used for the tip of centre gripping arc forging (5), and when crossbeam (8) when moving down, laminate to the orientation removal of keeping away from base (1) second slider (6) and first slider (4). The utility model discloses the deformation that can make people eliminate the arc forging better reaches better orthopedic effect.