Aiming　at　inner　ring　single　fault　and　inner　ring,　outer　ring　compound　fault　of　rolling　bearing,　wavelet　analysis　and　nonlinear　redundant　lifting　wavelet　packet　analysis　are　introduced　in　this　paper　to　process　the　fault　vibration　signals　in　order　to　realize　fault　diagnosis　of　bearing.　Conclusions　can　be　drawn　from　the　results　that　spectrum　analysis　is　of　limitation　for　fault　feature　extraction,　while　wavelet　analysis　and　nonlinear　redundant　lifting　wavelet　packet　analysis　are　more　effective　in　extracting　fault　feature　information　and　the　latter　has　more　advantage　in　compound　fault　analysis.　©　Springer-Verlag　London　2014.