The invention discloses a foreground extraction method and device, computer equipment and a storage medium, and the method can comprise the steps: carrying out the significance detection of an original image, and obtaining a gray level image corresponding to the original image; generating a Trimap image containing a foreground, a background and an unknown region according to the grayscale image; and in combination with the original image, performing foreground and background segmentation on an unknown region in the Trimap image to obtain an MASK image only containing a foreground and a background. By applying the scheme of the invention, manpower and time costs can be saved, and the accuracy of a processing result is improved.