A foldable display and an image processing method thereof are disclosed. The foldable display comprises a display module, a memory, a sensor module, and a processing unit. The sensor module senses a bending state of the display module. The processing unit generates adjusted images according to an image signal, and stores those adjusted images to a plurality of memory addresses of the memory. The processing unit selects a reading address from those memory addresses according the bending state. The processing unit selects a corresponding adjusted image from the memory according to the reading address and outputs the corresponding adjusted image to the display module.