Touch display panel structure

A touch display panel structure comprises a substrate, a plurality of pixel structures and a plurality of signal lines. Each pixel structure comprises a data line, a scanning line, a first insulation layer, a pixel electrode, a second insulation layer, a common electrode and a metal auxiliary electrode. The data lines and the scanning lines are arranged on the substrate. The first insulation layers cover the data lines and the scanning lines. The pixel electrodes are arranged on the first insulation layers. The second insulation layers are arranged on the first insulation layers and cover the pixel electrodes. The common electrodes are arranged on the second insulation layers. The metal auxiliary electrodes are arranged on the second insulation layers and electrically connected with the common electrodes. A plurality of touch induction units are formed by the common electrodes of the pixel structures. The signal lines are electrically connected with the touch induction units. The metal auxiliary electrodes and the common electrodes are electrically connected, and therefore interference of current on the touch induction units to other current signals is effectively reduced.