The invention discloses a method for displaying extra-large-resolution pictures on a television, relates to a multimedia function of a television, and aims to provide a method for displaying extra-large-resolution pictures on a television with a limited memory. The method comprises the following steps: a. setting a maximum available memory threshold M when a picture is browsed according to the memory situation of the television; b, acquiring the format, width and height of a picture from picture information; and c, comparing the pixel per inch of the picture with the pixel per inch of a full screen UI (user interface), if the pixel per inch of the picture is less than or equal to the pixel per inch of the full screen UI, displaying the picture based on a conventional method, and if the pixel per inch of the picture is greater than the pixel per inch of the full screen UI, scaling the picture, and then displaying the picture. The method disclosed by the invention is mainly used for displaying pictures on the television, and ensures that the pictures can be scaled without completely decoding the pictures, thereby effectively saving the times for decoding and scaling the pictures.