Array substrate and manufacturing method thereof

The invention provides an array substrate and a manufacturing method thereof. The manufacturing method comprises the steps of: manufacturing a switch array layer on a substrate; forming a color resistance layer on the switch array layer, wherein the color resistance layer comprises a red color film, a green color film and a blue color film, and via holes are formed in the color resistance layer; forming a transparent conductive layer on the color resistance layer; and forming a light-shielding layer on the transparent conductive layer. According to the array substrate and the manufacturing method thereof, a black matrix is manufactured after manufacturing the transparent conductive layer, so as to prevent hole size deviation which is prone to occur when forming the via holes in the black matrix and the color resistance layer, and prevent the transparent conductive layer from fracturing.