An image displaying method and system. The method includes: obtaining an image to be displayed, and dividing equally the image to be displayed into a plurality of first sub-images along a first direction; obtaining position information of a view point relative to the flat display and parameter information of a first virtual section line segment of the flat display; calculating a compensation ratio along the first direction for each first sub-image of the image to be displayed, according to the position information of the view point relative to the flat display and the parameter information of the first virtual section line segment; and compensating each first sub-image of the image along the first direction, and displaying the compensated first sub-image on the flat display, so that visual angles at the view point with respect to the compensated first sub-images are the same.