An embedded touch display panel including a first substrate and a second substrate is provided. The first substrate having a displaying region and a sensing region includes a stack structure, a first conductive layer and a first alignment layer. The stack structure disposed on the first substrate within the sensing region includes a protruding structure and a first rough structure disposed on the protruding structure. The first conductive layer conformally disposed on the stack structure has a first rough surface. The first rough surface is exposed from the first alignment layer that covers the first conductive layer. The second substrate includes a second conductive layer and a second alignment layer. The second conductive layer whose position corresponds to the sensing region is disposed on the second structure. A portion of the second conductive layer corresponding to the first rough surface is exposed from the second alignment layer covering thereon.