The invention discloses a polarization imaging degraded image restoration method in a strong scattering environment based on NSCT image fusion, and belongs to the field of optical image processing. The method comprises: underwater image preprocessing, algorithm input, NSCT decomposition, orthogonal matching pursuit (OMP) reconstruction, coverage of the edge of a source image on an initial fusion image by an edge detection technology, and algorithm output. Information entropy (EN), average gradient (AG) and standard deviation (STD) are selected as image evaluation indexes, and, through compared with the algorithm of the invention, image restoration is performed by using a Wiener filtering method, a constrained least square filtering method and a blind deconvolution method. According to experimental calculation, the algorithm provided by the invention is the highest in the aspects of information entropy (EN), average gradient (AG) and standard deviation (STD), that is, the algorithm is most effective, and the average gradient (AG) is improved by 3.5 times compared with intensity imaging and is improved by 10% compared with polarization imaging; and the standard deviation (STD) is improved by 44% compared with intensity imaging, and is improved by 17% compared with polarization imaging.