The present invention discloses a dental implant abutment structure having a screw end and a base end; the screw end can be locked into the screw hole of the implant, and the base end is divided into four to three equal parts, and the upper end is 4. The lower end portion is three, and the upper end portion can be fixed by the crown with a tight fit. Thereby, the abutment can be mounted on the implant, and can be used as a support for temporary dentures, permanent dentures or healing nuts, and the abutment is more stable after being coupled by the crown.本創作揭露一種植牙支台構造,該支台具有螺合端以及基柱端;該螺合端可鎖入植體之螺孔,而基柱端區分成四比三之等份,上端部為四、下端部為三,該上端部可供齒冠以緊迫配合黏著固定。藉此,該支台可安裝於植體上,可作為臨時性假牙、永久性假牙或癒合螺帽之支台,同時該支台經齒冠結合後,更具穩固性。