A bone implant has a drilling end and a connecting end in two ends. The bone implant also comprises an implant portion between the drilling end and the connecting end. A plurality of grooves is grooved on the outer surface of the implant portion, to forms a partition between any two adjacent grooves. The partition has an abutting surface, which corresponds to the outer surface of the implant portion. The partition also has an anti-come-off surface on at least one lateral side, with the anti-come-off surface is adjacent to the groove and forms an included angle with the abutting surface, with the included angle is smaller than 90 degrees.一種骨骼植入物,其兩端分別為一鑽頭端及一連接端,該骨骼植入物另具有一植入部,該植入部位於該鑽頭端與連接端之間,該植入部之外表面設有數個凹槽,以於相鄰的二凹槽之間形成一間隔塊,其特徵在於:該間隔塊於對應該植入部之外表面處具有一貼接面,該間隔塊之至少一側端設有一防脫面,該防脫面鄰接該凹槽並與該貼接面之間具有一夾角,該夾角小於90度。12‧‧‧植入部13‧‧‧凹槽131‧‧‧開放端132‧‧‧底端133‧‧‧谷面14‧‧‧間隔塊141‧‧‧貼接面142‧‧‧防脫面15‧‧‧谷凸塊θ‧‧‧夾角
