The present disclosure relates to an array substrate and the manufacturing method thereof, and a liquid crystal panel. The method includes forming a first metal substrate on a substrate; adopting a first mask to etch the first metal substrate to form a gate; forming a gate insulation layer, an active layer, and a second metal layer on the first metal layer in sequence; and adopting a second mask to etch the second metal layer and the active layer to form a source, a drain, and a pixel electrode. In this way, only two masks are adopted in the manufacturing process. Thus, the manufacturing process is enhanced, and the cost of the product is reduced.