The present invention provides a surface treatment method of metal medical restoration, which performs micro-arc oxidation treatment and electrochemical co-deposition process on the metal medical restoration to form a porous oxide film on the surface of the metal medical restoration and deposit a chemical compound in the plurality of holes of the porous oxide film, wherein the chemical compound contains calcium ions, phosphorous ions and growth factors, and the deposition ratio of calcium ions and phosphorous ions is similar to the ingredients of human bone, so as to enhance the bonding robustness at the attachment of the metal medical restoration to the hard tissues of human body and achieve better biocompatibility. The growth factors may be continuously released to the damaged hard tissue portions of human body to stimulate the osteoblast differentiation performance in the hard tissues of human body and induce the bone cell regeneration to enhance the restoration effect.本發明為一種金屬醫用復形物之表面處理方法，其係將金屬醫用復形物進行微弧氧化處理以及電化學共沉積製程，使金屬醫用復形物之表面形成一多孔氧化膜，並於多孔氧化膜之複數個孔洞內沉積一化合物。其中化合物包含鈣離子、磷離子以及生長因子；鈣離子以及磷離子之沉積比例近似於人體骨骼成分，可增進金屬醫用復形物與人體硬組織貼附處鍵合之穩固性，具有較佳之生物親和性；生長因子可持續釋放至人體硬組織受損之部位，以促進人體硬組織中骨細胞分化之表現，誘導骨細胞再生以提升修復之效。
