A method for displaying an image with a curved surface display effect is disclosed, which comprises: acquiring a position of a visual center point relative to a flat display panel; generating a curved surface based on the position, wherein a line between the visual center point and any point on the curved surface passes through a plane formed by the flat display panel, and intersects the curved surface once; generating a pixel grid on the curved surface based on resolution of the flat display panel; determining color information and luminance information of a pixel in the pixel grid; determining a valid pixel set in the flat display panel corresponding to the pixel grid; rendering the valid pixel set of the flat display panel based on the color information and the luminance information of the pixel grid.