This invention provides a composite titanium artificial joint, especially using titanium metal that has superior malleability and is compatible with human bone as the base material of artificial joint. The titanium alloy with high-hardness and high-strength is formed on the joint surfaces mutually contacted between bones in processing manner like welding, to provide the wear resistance when the joint is moving. Moreover, this invention uses a very thin titanium metal to wrap polyethylene material in its interior to substitute the cartilage tissue in the artificial joint, so as to avoid the wearing on the surfaces between polyethylene material and other polyethylene material or metal material due to relative motion when traditional artificial joint moves.本發明係提供複合鈦金屬之人工關節,尤指透過延展性佳且人體骨骼相容的鈦金屬作為人工關節的基礎材料,並將高硬度、高強度的鈦合金材料,以焊接等加工方式成型於骨與骨之間相互接觸的關節面上,以承受關節活動時的抗磨損能力;此外,本發明利用厚度相當薄的鈦金屬材將聚乙烯材料包覆於內部中,用以取代人體關節中之軟骨組織,從而避免傳統的人工關節活動時,因聚乙烯材料與其他聚乙烯或金屬材料的表面因相對運動而造成磨耗。10...脛骨組件11...基座110...植入端111...卡合槽12...蓋體120...卡合塊121...容槽122...接面層123...焊道13...襯墊20...股骨遠端組件21...座體211...內壁面212...承面80...脛骨90...股骨