The present invention provides an OLED touch display panel including an array substrate, an organic light-emitting layer; and a cathode metal layer patterned to form first touch signal lines arranged parallel to and spaced from each other. The OLED touch display panel further including an encapsulation layer; a circular polarizer plate; second touch signal lines disposed in or at a side of the circular polarizer plate; and the first touch signal lines and the second touch signal lines formed a touch panel.