Abstract: This paper summarizes the research and development of the wavelet filtering method in recent years.On the one hand，it summarizes the recent and representative wavelet filtering algorithms from the ideology，principles，advantages，disadvantages，and other aspects of algorithms.On the other hand，some typical filtering algorithms and some common signals are selected to the experimental result mainly from the Signal-to-Noise Ratio（SNR） and the Mean Square Error（MSE）.And the effects of different filtering algorithms are compared and analyzed separately from a filter algorithm with different signals and a signal with different filtering algorithms.Finally，the hot，the difficulty，the deficiency and other issues unresolved of wavelet filtering are proposed through the combination of the above analysis.