A dental implant positioning guide assembly comprises: a positioning rod, a convex positioning element, a concave engaging element, a connecting element and a plurality of guiding elements. The positioning rod is inserted into a bore drilled in advance in a dental model of one of the patients. The protruding positioning component defines a through hole corresponding to the positioning rod for being sleeved on the positioning rod. The female snap-fit element is positionally mountable to the raised positioning element. The connecting element is secured to one side of the female snap-fit element and has an oral contact surface that conforms to the oral contour of one of the patient for engaging the contour of the cavity. Any one of the guiding elements is positionally assembled to the concave engaging element, and the guiding element defines a notch, and a curved guiding surface is formed at the notch to guide the surgical performer to drill a Implants.一種牙科植體定位導引組件，包含：一定位棒、一凸起定位元件、一內凹卡合元件、一連結元件與複數個導引元件。定位棒係用以插設於一預先在一患者之一口腔模型內所鑽出之鑽孔。凸起定位元件係開設有一對應定位棒之穿孔，用以套設於定位棒。內凹卡合元件係可定位性地組裝於凸起定位元件。連結元件係固接內凹卡合元件之一側，並具有一與該患者之一口腔輪廓相吻合之口腔接觸面，用以卡合該腔輪廓。導引元件中之任一者係可定位性地組裝於內凹卡合元件，且導引元件開設有一缺口，並在缺口處形成一曲型導引面，以導引手術執行者鑽設一植牙孔。
