This creation provides a kind of dentist's drilling into bone positioning guidance device, and wherein pedestal includes an outside wall surface, an inner wall, a guide channel and two extensions； Inner wall system is with respect to what outside wall surface； Guide channel is surround by inner wall and is formed； Extension system extends from the two sides of outside wall surface and inner wall respectively, and the long axis direction of the equal extensions is parallel with the long axis direction of pedestal, and the grade is the diameter of small what inner wall along the distance between extending portion. Locating piece system protrudes out the outside wall surface of molding what pedestal. It is the diameter of small what inner wall along the distance between extending portion by the grade, is not easy to deviate guide channel when drilling rod being made to be drilled, reaches the effect of increasing borehole stability degree and precision； It is designed simultaneously by locating piece, makes this creation that can more securely bury what guiding mold without easy to fall off.本創作提供一種牙醫用骨骼鑽孔定位導引裝置，其中基座包含一外壁面、一內壁面、一導引槽以及兩延伸部；內壁面係相對於外壁面；導引槽係由內壁面環繞形成；延伸部係分別從外壁面與內壁面的兩側延伸，該等延伸部的長軸方向與基座的長軸方向平行，且該等沿伸部之間的距離係小於內壁面的直徑。定位塊係凸伸成型於基座的外壁面。藉由該等沿伸部之間的距離係小於內壁面的直徑，使鑽桿進行鑽孔時不易偏離導引槽，以達成增加鑽孔穩定度與精準度的功效；同時藉由定位塊設計，使本創作能更穩固地埋設於導引模具而不易脫落。
