Abstract: Since Self-lubricating bearings usually work under the conditinss of boundary lubrication, their performance is very sensitive to following factors, matrix materials, pore sizes and porosity. In this paper, therecent experimental results obtained by improving the performance of self-lubricating bearings as a result of the selection of composition and the control of processing conditions were given. The requirements for porous bearings used under the conditions of low noise and/or high speeds were described and several new materials which were suitable for these applications were also listed. Some aspects to be further studied were finally suggested.