An electrostatic discharge circuit and a manufacturing method therefor, and a display apparatus. The electrostatic discharge circuit includes: a base substrate; at least one first signal line located on the base substrate, at least one second signal line and a first isolation layer, wherein the at least one first signal line and the at least one second signal line are insulated from each other by the first isolation layer; and a second isolation layer covering the at least one second signal line, wherein a via hole is provided on the at least one first signal line, the via hole penetrates through the first isolation layer and the second isolation layer so that the at least one first signal line is located at the bottom of the via hole, and a part of the via hole is enclosed by the at least one second signal line.