An image display method and an image display device are provided, wherein the image display method involves calculating a static mass fraction of an image based on a static parameter of the image to be displayed and a static parameter of the display module which displays the image (S110); calculating a dynamic mass fraction based on a dynamic parameter of the image (S120); calculating a mass fraction of the image based on the static mass fraction and the dynamic mass fraction of the image (S130); calculating the display time length for displaying the image based on the mass fraction of the image (S140); displaying the image according to the display time length by the display module (S150).
