This book delves into the requirements and constraints of porous implants, an optimization design approach for the porous structure using Selective Laser Melting (SLM) technology. It further refines the design of the femoral unit structure. Additionally, the book presents the design and fabrication of a titanium alloy surface with micro-nano structures, and investigates the application of porous titanium materials in artificial bones. This work encompasses the preparation of artificial bone technology, as well as an in-depth examination of its performance and practical application.