An image filtering method is provided, including: acquiring a sample characteristic value of a sample image; ranking images to be filtered in a specific chronological order; acquiring characteristic values of the images to be filtered; comparing the characteristic values of the images to be filtered with that of the sample image, selecting, from the images, filtered images conforming to preset conditions, storing the filtered images in the specific chronological order, and displaying the filtered images. Accordingly, a user is enabled to easily find identical or similar images amongst a large number of images.