A display system, an image compensation method and a non-transitory computer readable storage medium thereof are provided. The display system includes a flexible panel, a prediction unit, a compensation unit, an image synthesis unit and a control unit. The prediction unit predicts a prediction angle of the flexible panel in a final time. The compensation unit generates a first compensation image according to an initial display angle of the flexible panel in an initial time, and generates a second compensation image according to the prediction angle. The image synthesis unit synthesizes a first display image according to the first compensation image and the second compensation image. The control unit selectively substitutes the first display image for an image displayed on the flexible panel in the final time.