The utility model discloses a reduction fixing orthopaedic orthosis, which comprises a support plate, a soft
cushion, a fixing component, a first
down feather cushion and a second
down feather cushion, a plurality of first through holes are arranged on the support plate, a storage groove is arranged in the support plate, the soft cushion is adhered on the inner side of the support plate, a plurality of second through holes are arranged on the soft cushion, and the fixing component is arranged in the storage groove. The fixing
assembly comprises a first elastic band arranged on the left side of the supporting plate, a second elastic band arranged on the first elastic band and fixedly connected with the supporting plate and a second hook-and-loop
fastener rough surface arranged on the outer side of the first elastic band and the outer side of the second elastic band, and the first
down feather cushion is inserted into the storage groove in a penetrating mode. The right side of the second down
feather cushion is provided with an outer side hook-and-loop
fastener hook face. By arranging the first down
feather pad and the second down
feather pad, the warm keeping effect is achieved under the condition that use of the orthopedic orthosis is not affected, meanwhile, by arranging the first through holes and the second through holes, ventilation and heat dissipation can be achieved, the dual-purpose effect in east and summer is achieved, and the use range is wide.