An array substrate, its manufacturing method, and a display apparatus are provided. The array substrate having a substrate, includes: a monocrystalline silicon substrate employed as the substrate including a central display area, a first peripheral area, and a second peripheral area; substrate circuits integrated with a scan drive circuit in the first peripheral area, a data drive circuit in the second peripheral area, and a plurality of pixel circuits in the central display area; a plurality of scan lines in the central display area and coupled to the scan drive circuit; and a plurality of data lines in the central display area and coupled to the data drive circuit. The scan drive circuit, the data drive circuit, and the plurality of pixel circuits include a plurality of transistors, each of which has an active region inside the monocrystalline silicon layer.