Abstract: in the artificial knee joint simulation test bench and the corresponding bio -tribological tests Artificial knee joint simulation test bench includes three types , i. e spherical contact type , type that forces and motions were directly applied and knee muscle force reconstruction type The requirements and characteristics of the three kinds of experiments were discussed The standards of artificial knee joint bio -tribological experiment were introduced It 15 suggested to develop experiment in vivo , expand the measure range of body motion , and focus on synergistic effects of multi - factor on the wear mechanism of artificial knee joint and establish unified experimental standard for artificial knee joint