This creation discloses a kind of fixation device of fixed fractured bone, including bone plate and the sleeve being releasably coupled with bone plate, wherein, bone plate includes joining section, the engaging hole for forming what joining section and the fixed section that connect with joining section, wherein, sleeve includes ontology and from the joint portion of body tip extension, then sleeve is engaged with the engaging hole of bone plate with joint portion and installed on the joining section of what bone plate. Bone nail is planted in what sleeve and is inserted into fractured bone so that the joining section of the sleeve and bone plate that are interconnected enters fractured bone, and the fixed section of bone plate is fixed in fractured bone, thereby fixes fractured bone. By this creation, doctor can what assessment status of patient Hou select the sleeve of different length again to install on what bone plate.本創作揭示一種固定斷裂骨之固定裝置,包括骨板以及與骨板可拆卸地接合之套筒,其中,骨板包括接合段、形成於接合段之接合孔及與接合段連接之固定段,其中,套筒包括本體及自本體末端延伸之接合部,則套筒以接合部與骨板的接合孔接合而安裝於骨板之接合段上。骨釘插置於套筒中並插入斷裂骨以使相互接合之套筒與骨板的接合段進入斷裂骨,而骨板的固定段固定在斷裂骨上,藉此固定斷裂骨。藉由本創作,醫師可於評估患者狀況後再來選擇不同長度的套筒以安裝於骨板上。