Abstract: The earlist ceramic material used for making artifical hip joint was alumina ceramic, people pay more and more attention to it for its high hardness, excellent elastic modulus, great strength, good wear resistance and well biocompatibility. Ceramics are hard and brittle materials, which had low tension strength, and the fracture risk is very high, so a lot of work had been done to improve the physical properties of alumina ceramic. Pratical using in clinic for several decades, it had been proved that alumina ceramic hip joint is the most stable artificial hip joint so far, and has great development potential.