Abstract:On the basis of the HilbertHuang Transform(HHT) method and according to the assumption of the background noise signal continuity in time domain, an adaptive algorithm of seismic signal denoising is presented. The algorithm, as used to analyze the seismic wave , has certain positive results.Through the analysis following conclusions can be drawn.1)According to the background noise signal characteristics, the algorithm can effectively remove the lowfrequency noise signal from the original signal. 2)By the use of the adaptive algorithm we can decompose the signal and denoising, and avoid the time resolution and frequency resolution problem. 3)The algorithm has the flaw for dealing with highfrequency interferenc,and so needs to be improved.