Single channel prediction method due to the imperfect defects of vibration information, lead to prediction results having poor consistency, thus it cannot realize fault prediction.In view of the imperfect defects of the single channel information, combing timeseries forecasting method ARMA model with full vector spectrum technology based on the homologous information fusion technique, full vector spectrumARMA model prediction method was proposed.Full vector spectrum was made up of information fusion of two mutually perpendicular channel, and the spectrum structure of the same cross section could not change with a pair of sensors installation location.The spectrum structure based on full vector spectrum has uniqueness, so this method can realize the prediction and predictive results have good consistency, and so that they can realize the fault prediction.Experiments show that this method has good prediction results and practical.