The invention belongs to the technical field of image processing and particularly relates to an infrared and visible image fusion method based on a saliency map and interest point convex hulls. The infrared and visible image fusion method comprises the following steps that firstly, saliency detection is conducted on an infrared image, so that a binarized saliency map is obtained; secondly, interest point detection is conducted on the infrared image; thirdly, free interest points are removed, and salient interest points are obtained; fourthly, convex hulls of the salient interest points are obtained, AND operation is conducted on the binarized saliency map and a convex hull image, so that a target area is obtained, and the remaining portion of the image is used as a background area; finally, different fusion rules are adopted for the target area and the background area respectively, and the infrared image and the visible image are fused. By the adoption of the infrared and visible image fusion method, a few of interest points on a background can be removed, the obtained convex hulls of the salient interest points are more approximate to a real target, and by means of the saliency map, the target area can be more accurately extracted; the fusion performance is easily, rapidly and effectively improved.