A touch panel and a manufacturing method thereof and a touch display device are disclosed. The touch panel includes: a base substrate; and a first touch electrode on the base substrate, the first touch electrode including a plurality of first touch electrode lines intersecting with one another, wherein in a direction perpendicular to the base substrate, each of the first touch electrode lines include at least two laminated transparent conductive layers, which include a laminate of a first metal oxide layer and a first metal layer, or a laminate of the first metal oxide layer and a first graphene layer.