An array substrate, a curved display panel and a curved display device are provided, to improve visual effect and image quality of the display panel being curved by external force. The array substrate includes multiple pixel units arranged in a matrix, each pixel unit comprises at least two sub-pixel units, and each sub-pixel unit is provided with a pixel electrode and a common electrode. The pixel electrodes and/or the common electrodes in an identical pixel unit have an identical structure, and the pixel electrodes or the common electrodes in different pixel units have at least two structures. The pixel electrodes or the common electrodes are symmetrically arranged relative to a central axis of the array substrate. The central axis is a straight line located in the center of the array substrate and extending in a direction parallel to the array substrate, and an extending direction of the central axis does not change when the array substrate is curved.