Abstract: Supporting the study of artificial articuar cartilage materials, the research and development of an artificial synovial fluid of Hyaluronic acid (HA) was carried out. With two lubricated sliding pairs, PVAH/316L and PVA-H/PVA-H, an modified oscillator-type tri-biometer and M-2000 wear test machine were used to detemine the rehological properties and lubricating behaviour of a series of HA solution.The experimental results showed that the solution of HA had the rehological properties similaring to the natural synovial fluid to a cehain eXtellt, and decreased the ffiction and wear of tWo kinds of lubricatCd sliding pairs, also it rendered abetter 1ubricating effection on PVA-unVA-H than on PVA-H/3 l6L. The sofution of HA with O.75% (massfraction) showed a better lubricating behaviour than 30% (volumic fraction) Bovine Serum. So HA solutionwould be a promising Anficial synovial fluid.