一种纳米有序结构锶掺杂钙磷化合物膜层的制备方法，涉及医用金属领域。将待处理的医用植入材料预处理；对基底进行阴极电化学沉积，在基底表面获得纳米有序结构锶掺杂钙磷化合物膜层。通过电化学定向沉积在医用金属表面构筑与自然骨结构形似的纳米有序钙磷化合物/锶复合涂层，由此可大幅提高材料的生物相容性和生物活性，并可实现临床应用。建立了制备微纳米有序二级结构磷酸八钙/锶复合涂层的方法。运用电化学沉积方法实现了钙磷化合物/锶复合膜层的表面构筑。本发明为高生物活性纳米有序复合人工骨材料制造提供了一种重要方法。

 The invention discloses a preparation method of a nano-ordered structural strontium-doped calcium-phosphorus compound film layer, and relates to the field of medical metals. According to the preparation method, a medical implant material to be treated is pretreated; and a substrate is subjected to cathode electrochemical deposition, and a nano-ordered structural strontium-doped calcium-phosphoruscompound film layer is obtained on the surface of the substrate. According to the preparation method, a nano-ordered calcium phosphorus compound/strontium composite coating similar to a natural bone structure is constructed on the surface of medical metal through electrochemical directional deposition so that the biocompatibility and the biological activity of the material can be greatly improved,and clinical application can be realized; the preparation method of the micro-nano-ordered secondary structure octacalcium phosphate/strontium composite coating is established; surface construction of calcium phosphorus compound/strontium composite film layer is realized by using an electrochemical deposition method; and the preparation method is an important method for manufacturing a high-bioactive nano-ordered composite artificial bone material.