A kind of femoral head replacement femoral head replacement mould group and its operation tool,Its operation tool cuts die sleeve and a mould knife including one,It is hollow and have shell with neck of femur surface same shape that this cuts die sleeve system one,Make its can it is simple,Close fitting what neck of femur side,So that femoral head end shape to be replaced is cut into a default shape for dissecting section by a mould knife,And just what operation finishes Hou and removes,This cuts die sleeve top side equipped with a conduit to what,For being drilled with a medium pore to femoral head,It cuts die sleeve middle section and is horizontally set with a cross groove-channel,It can be made for the accurate guiding of excision femoral head; And the femoral head replacement mould group then includes at least a cover and an artificial thigh bone,The cover system is assisted using stereoscan instrument,It is shaped to the shape of its cardinal extremity with the surface shape identical as size thickness below neck of femur,And it pushes up section and sets the dissection section identical or approximate as above-mentioned femoral head replacement end,The above-mentioned femoral head replacement end of combinations of states what that consolidate the cover of the artificial thigh bone can also with precision.一種股骨頭置換股骨頭置換模組及其手術工具,其手術工具包括一裁切模套與一模刀,該裁切模套係一中空且具有與股骨頸表面相同形狀之殼體,使其可簡易、緊密套合於股骨頸周側,以供一模刀將股骨頭欲置換端形切成一預設解剖斷面之形狀,且便於手術完畢後取下,於該裁切模套頂側設有一導管,以供對股骨頭鑽設一中央孔,裁切模套中段橫設一橫槽道,可供作切除股骨頭之精確導引;而該股骨頭置換模組則至少包括一罩體與一人工股骨頭,該罩體係利用立體掃描儀器輔助,使其基端之形狀成型為具有與股骨頸下方大小粗細相同之表面形狀,且其頂段設與上述股骨頭置換端相同或近似之解剖斷面,使該人工股骨頭之罩體亦能以精密而穩固之狀態結合於上述股骨頭置換端。