An array substrate, a manufacturing method therefor, and a touch display panel are provided. The array substrate includes: a touch electrode, located on a base substrate and extending along a first direction; a pixel electrode, located on the base substrate, insulated from the touch electrode and including opposing outer edges, the outer edges being sequentially arranged along a second direction. In the second direction, the orthographic projection of the touch electrode on the base substrate is located between the orthographic projections of the outer edges of the pixel electrode on the base substrate. The array substrate prevents or reduces differences between coupling capacitances between the pixel electrode and signal lines on two sides thereof.