Abstract: It is important to evaluate or predict the anti-wear life or reliability of the newmachine parts in engineering application. However the wear procedure is affected by manystochastic factors.The simulation wear test is often used in laboratory.This test method takeslong time to obtain adquate test data. Here we put forward an accelerated wear life test main-taining the similarity of wear mechanism and increasing the PV value within a suitable limit.On the principle of reliability design and the numerical calculation of wear life,the investigationin this paper lays on the sliding wear in accelerated test method with multi-sample,which includes the determination of accelerating test factor,the parameter evaluation of antiwear life,the anti-wear life prediction and the evaluation of confidence level.