This paper studies Synthetic Aperture Radar(SAR) images with the multiresolution analysis of wavelet transform. This study indicates that the influences of the coherent speckle noise on different frequency components of the SAR images are different, and that the manners of singularity of the SAR images and the speckle noise are different, too. So, this paper presents a denoising method of wavelet analysis to reduce the coherent speckle noise. In the meanwhile, a lot of experiments approve that this method n...