Abstract. This study provides a comprehensive analysis of nanotechnology-based medical implants, emphasizing their transformative impact on modern biomedical engineering and clinical practice. The integration of nanomaterials and nanoscale surface modifications into implant design has demonstrated significant improvements in biocompatibility, mechanical strength, and functional longevity, thereby enhancing patient outcomes and reducing postoperative complications. The research systematically reviews current advancements in nanocoatings, nanoscale drug delivery mechanisms, and biomimetic surface engineering, which collectively contribute to enhanced osseointegration and antimicrobial properties. Furthermore, the study critically addresses existing challenges, including biotoxicity risks, fabrication scalability, and regulatory hurdles that impede widespread clinical adoption. By elucidating the interdisciplinary approaches underpinning the development of nanotechnology-enabled implants, this work highlights the potential to revolutionize therapeutic strategies and implantable device performance.