Aimed at the characteristics of fault vibration signals processes were affected by the variable speed of the bearing in fault diagnosis,a new fault diagnosis method combined of order tracking analysis with Ensemble Empirical Mode Decomposition(EEMD)was proposed for studying of signals of unstable vibration of bearing.The bearing vibration signal was sampled at constant time increments traditionally,and computer order tracking was used to transform the data at constant angle increments in angle-domain.With the method of EEMD,the angle domain stationary signal was adaptively decomposed into a finite number of Intrinsic Mode Function(IMF)containing fault information.Each IMF was analyzed by frequency spectrum.The application results show that this method can effectively extract the fault characteristics of the bearing.