A constant speed display method applied in an electronic device is provided. The electronic device is in a full screen view for illustrating images in a photograph. The method has the following steps of: determining whether consecutive swiping touch actions matching specific criteria have been received by the electronic device; and displaying an aligning animation of the images in the photograph at a constant speed without being affected by a next swiping action after the consecutive swiping touch actions matching the specific criteria have been received by the electronic device.