The invention discloses an image rain removal method based on multi-scale progressive fusion. The method comprises pyramid decomposition of a rain image, relevance learning of rain stripes, and progressive fusion and reconstruction of multi-scale features. In the pyramid decomposition process of the rain image, Gaussian sampling operators of different scales are utilized to perform sampling decomposition on the original rain image; in the correlation learning process of the rain stripes, learning global texture feature correlation is learned by using a non-local network; in the progressive fusion and reconstruction process of the multi-scale features; the multi-scale pyramid network is used for processing the features of the corresponding scales, and meanwhile, the multi-scale rain stripeinformation is gradually fused to assist the feature expression of the highest pyramid layer, so that the multi-scale fusion of the rain stripe information is realized, the residual rain image is reconstructed, and the residual image is subtracted from the rain image to obtain the rain-free image. According to the method, tThe correlation between the rain stripes in the same-scale image and the rain stripes in different-scale images is effectively utilized, the rain stripes are more accurately modeled, and a better rain removal effect is achieved.