The utility model discloses a hip, knee replacement position board mainly wraps the rubbing board body, hip joint fixing ware, knee joint fixer and upper limbs fixer, and the plate body upper surfaceis opened has a plurality of locating holes, and the locating hole is used for fixed hip joint fixing ware, knee joint fixer, upper limbs fixer. The utility model discloses the advantage lies in: through the cooperation of plate body with adj. Tabular hip joint fixing ware, form face -to -face fixed patient's brestbone and pubic symphysis portion and shoulder blade, chest lumbar vertebrae and cacroiliac joint portion, avoid the point -to -area fixed body that causes of tradition to rock, simultaneously patient's ankle rear and shank gastrocnemius the most suddenly source insert and dial the knee joint fixer, it is swiftly more convenient than tradition installation bed fixer, this position board can use between THA and TKA operation in the conversion, reduce the trouble of dismantling traditional bed fixer between the operation when rotating in turn, the upper limbs fixer then in the reducible art arm hang the risk that falls, the event the position board is safe in utilization, convenient, swift, easy operation.