The article reviews the progress in the structural design and preparation methods of porous titanium alloy bone implants, analyzing the parameters affecting implant performance and discussing their applications. The study concludes that pore diameters in the range of 500–800 μm and porosities in the range of 70%–90% have better bone-regeneration effects. Additionally, diamond, rhombohedral, and cube structures exhibit superior mechanical properties and bone-regeneration effects. The article highlights the advantages of 3D printing technology in fabricating porous implants, which can customize implants with various shapes and sizes tailored to individual patients. The review also discusses the challenges and future directions in the field, emphasizing the need for further research on bionic porous scaffolds and the combination of porous titanium alloys with other functional materials to enhance performance and functionality.The article reviews the progress in the structural design and preparation methods of porous titanium alloy bone implants, analyzing the parameters affecting implant performance and discussing their applications. The study concludes that pore diameters in the range of 500–800 μm and porosities in the range of 70%–90% have better bone-regeneration effects. Additionally, diamond, rhombohedral, and cube structures exhibit superior mechanical properties and bone-regeneration effects. The article highlights the advantages of 3D printing technology in fabricating porous implants, which can customize implants with various shapes and sizes tailored to individual patients. The review also discusses the challenges and future directions in the field, emphasizing the need for further research on bionic porous scaffolds and the combination of porous titanium alloys with other functional materials to enhance performance and functionality.