The invention relates to an
osteotomy positioning device,. The device comprises an extramedullary positioning rod, an
osteotomy plate, a first adjusting mechanism, a
ankle holding device and a secondadjusting mechanism, wherein the upper end of the extramedullary positioning rod is provided with an
osteotomy fixing seat, the osteotomy plate is arranged on the osteotomy fixing seat and used for positioning the osteotomy position of a tibial
plateau, the first adjusting mechanism is arranged between the extramedullary positioning rod and the osteotomy fixing seat and used for adjusting the distance between the osteotomy fixing seat and the upper end of the extramedullary positioning rod, the
ankle holding device is arranged at the lower part of the extramedullary positioning rod and is usedfor wrapping and fixing an
ankle joint, and the second adjusting mechanism is arranged on the extramedullary positioning rod and used for adjusting the length of the extramedullary positioning rod. According to the device, fixing nails do not need to be punched on the tibial
plateau for fixing, and the damage to
sclerotin of a patient is reduced; the position of the osteotomy plate can be rapidlyand accurately adjusted to adjust osteotomy errors, and the implementation efficiency of
surgical operation is improved; and the osteotomy plate can be assisted to be fixed in real time through the fixing effect of the extramedullary positioning rod and the ankle holding device, it is guaranteed that the position of the osteotomy plate is stable enough in the osteotomy operation process, and theaccuracy of osteotomy operation is improved.