The present invention provides a method of manufacturing an implant comprising the steps of preparing a mixed etching composition comprising hydrogen peroxide and a water soluble carbonate compound, and immersing the etching composition in an implant of titanium or titanium alloy material to oxidize； A titanium or titanium alloy implant prepared by oxidative etching with a mixed etch composition comprising hydrogen peroxide and a water soluble carbonate compound； And a composition for surface treatment of an implant comprising hydrogen peroxide and a water-soluble carbonate compound. The present invention also relates to a titanium or titanium alloy implant prepared by oxidative etching with an etching composition containing hydrogen peroxide and a basic solution and having concave and convex portions of a nanoscale continuous or discontinuous linear open channel structure formed on the surface thereof； And a method for producing the same. The titanium alloy surface treated with a mixed etching composition comprising hydrogen peroxide and a carbonate compound of the present invention or with a hydrogen peroxide and basic solution containing etching composition has been found to have an increased number of micrometer size irregularities and channel shaped nanometer- Surface area, wettability can be improved, and cell proliferation and bone cell differentiation can be effectively promoted. In addition, since the composition does not contain a compounding substance such as strong acid and is environmentally friendly, it can block surface residues of these substances and thus can improve biocompatibility and can be used for surface treatment of implants.본 발명은 과산화수소 및 수용성 카보네이트 화합물을 포함하는 혼합 에칭 조성물을 준비하는 단계 및 상기 에칭 조성물에 티타늄 또는 티타늄 합금 재질의 임플란트를 침적하여 산화에칭하는 단계를 포함하는 임플란트의 제조방법； 과산화수소 및 수용성 카보네이트 화합물을 포함하는 혼합 에칭 조성물로 산화에칭시켜 제조한 티타늄 또는 티타늄 합금 임플란트； 및 과산화수소 및 수용성 카보네이트 화합물을 포함하는 임플란트 표면처리용 조성물에 관한 것이다. 또한, 본 발명은 과산화수소 및 염기성 용액 함유 에칭 조성물로 산화에칭시켜 제조되고, 나노스케일의 연속 또는 불연속 선형태 열린 채널
