The invention relates to an image super-resolution reconstruction method and system, and a computer storage medium. The image super-resolution reconstruction method comprises the following steps: S1,reconstructing an original image into an image with a fixed size, obtaining an original high-resolution image, and carrying out the interpolation downsampling of the original high-resolution image, and obtaining a low-resolution image; S2, performing super-resolution reconstruction based on edge enhancement on the low-resolution image based on a generative network to obtain a super-resolution image; and S3, performing authenticity discrimination on the super-resolution image based on the discrimination network and the original high-resolution image. According to the image super-resolution reconstruction method, a single low-resolution image is expressed through edge detail information enhancement, and an edge enhancement fusion network is added into an original super-resolution reconstruction generation network, so that the super-resolution reconstruction performance of the image is improved, and a clearer reconstructed image is obtained; and in addition, the discrimination network canalso improve the reconstruction performance of the edge enhancement generative adversarial network.