The present invention discloses an image processing method and a mobile terminal. The method comprises the steps of obtaining a first image acquired by a first camera and N frames of images acquired by a second camera within a same time quantum; and synthesizing the first image and the N frames of images to generate a finally outputted target image, wherein the first image is a normal exposure image, the N frames of images are all underexposure images, the starting time when the first camera acquires the image and the starting time when the second camera acquires the images are same, the first exposure duration of the first camera is N times of the second exposure duration of the second camera, and N is a positive integer. According to the image processing method of the present invention, the double cameras realize the electronic shake resistance, and the (1+N) frames of images are synthesized to obtain the output image of abundant details and higher image quality, thereby realizing the electronic shake resistance. In addition, the image processing method is suitable for various application scenes, such as single shot, continuous shot, panoramic photography, video recording, etc., thereby solving the problem that the electronic anti-shake limitation is large.