A bone implant is presented, which comprises a body and an abutment base. The body has a connecting end, a drilling end and a plurality of engaging sections between the connecting end and the drilling end, with a depart-preventing section forms between any two adjacent engaging sections. Each engaging section has a screw with the same spiral direction on the peripheral surface of the body while the depart-preventing section has an engaging portion on the peripheral surface of the body. The largest outer diameter of the depart-preventing section is smaller than the smallest outer diameter of any engaging section from the depart-preventing section to the connecting end. The abutment base is arranged at the connecting end of the body, with the abutment base has a concave hole.一種骨骼植入物，係包含：一本體，該本體之二端分別為一連接端及一鑽頭端，該本體在該連接端與鑽頭端之間設有數個嚙合區段，任二相鄰之嚙合區段之間設有一防脫區段，該數個嚙合區段各在該本體之環周面分布有一旋向相同之鑽鑿螺紋，該防脫區段在該本體之環周面設有一卡掣部，該防脫區段之最大外徑小於該防脫區段至該連接端間之各該嚙合區段的最小外徑；及一支台座，設於該本體之連接端，該支台座中設有一鍵合凹孔。
