An array substrate, a method for determining an abnormal display thereof, a display panel, and a display device are provided. The array substrate includes: a source IC in a border area of the array substrate, wherein the source IC includes a reset pin and idle output pins; a reset unit in the border area of the array substrate, wherein the reset unit includes an output terminal and input terminals, the input terminals of the reset unit are electrically connected with the idle output pins of the source IC, and the output terminal of the reset unit is electrically connected with the reset pin of the source IC; and the reset unit is configured to determine whether the array substrate displays abnormally, and if so, to reset the source IC.