The present invention relates to a bioimplantation metal having a nano-patterning groove surface, a method for preparing the metal, an implant, a method for manufacturing the implant, a stent, and a method for manufacturing the stent. The subject matter of the present invention comprises the steps of: forming a titanium oxide nanotube by anodizing a metal base comprising titanium metal or a titanium alloy and forming a groove on a surface of the metal base by removing the titanium oxide nanotube. Therefore, a groove is formed on the surface by removing the anodized surface after anodizing the surface of a metal base, and an anodized titanium oxide film is stripped off such that a leak thereof from the inside of a living body is prevented and impurities remaining on the surface are effectively removed. In addition, when titanium or a titanium alloy for bioimplantation, is used as a metal base material and is bioimplanted by the groove formed through surface anodizing, such that the surface area is maximized, thereby having excellent bioaffinity, chemical compatibility and mechanical compatibility during bioimplantation, and various sizes of grooves comprising nano-patterning can be formed by carrying out anodizing in combination with sandblasting or sandblasted, large-grit, acid-etched (SLA) method.La présente invention concerne un métal de bio-implantation ayant une surface de rainure nano-modelée, un procédé de préparation du métal, un implant, un procédé de fabrication dimplant, un stent, et un procédé de fabrication de stent. Lobjet de la présente invention comprend les étapes consistant à : formation dun nanotube doxyde de titane par anodisation dune base métallique comprenant du titane métallique ou un alliage de titane et la formation dune rainure sur une surface de la base métallique par élimination du nanotube doxyde de titane. Par conséquent, une rainure est formée sur la surface par élimination de la surface anodisée après anodisation de la surface dune ba
