This invention provides a dental implant which can form a functional periodontal tissue in the circumference of implant after the dental implant transplantation.The dental implant of this invention is characterized that: a cell mass coming from the tooth embryo tissue or the periodontal ligament tissue is disposed on the surface of the implant, and the surface of the implant where the cell mass disposed is a whole surface or a part of the surface being encircled by patient’s alveolar bone during the implant transplantation.