PURPOSE: A method for manufacturing a highly hydrophilic implant is provided to obtain implant surface with improved hydrophilicity and to shorten bone fusion time. CONSTITUTION: A method for manufacturing a highly hydrophilic implant comprises: a step of regulating the roughness of implant surface(S1)； and a step of treating the implant with how water(S3). The surface is treated by a sand blast process, a titanium plasma spray process, an acid-etching process, or a combination thereof. [Reference numerals] (AA) Step of treating surfaces by adjusting the roughness of the surface of an implant； (BB) Step of treating the surface treated implant with hot water； (CC) S1 step； (DD) S3 step실시예는 임플란트 표면의 거칠기를 조절하는 표면처리단계； 및 상기 표면처리 된 임플란트를 열수처리하는 단계를 포함하는 고친수성 임플란트의 제조방법을 제공한다.
