The present invention relates to a permeability calculation method based on an electrical imaging face rate. The method comprises the steps of: 1) reading electrical imaging logging data and routine logging data, performing depth matching and correction of the electrical imaging logging data, and performing preprocessing of the corrected electrical imaging logging data to generate an electrical imaging logging dynamic image; 2) selecting an electrical imaging logging dynamic image with a set size as an image processing window, and performing filtering and denoising of the image processing window data; 3) selecting an image segmentation method based on a threshold value to perform image segementation of an image after filtering and denoising, and generating a binary image according to the conductivity information of the hole; 4) obtaining a hole face rate; 5) calculating the permeability based on a stratum pore structure and the hole face rate through the stratum effective permeabilityformula; and 6) after the permeability corresponding to the image processing window is completely calculated, returning to the step 2) to calculate the permeability of a next image processing window until the effective depth section of the electrical imaging logging dynamic image is all completely calculated to obtain the permeability of the whole well in the effective depth.