Abstract: The present disclosure provides a curved display panel and a manufacturing method thereof and a display device. The curved display panel includes a first substrate, a second substrate, a liquid crystal layer, a first alignment layer and a second alignment layer. The first substrate and the second substrate are opposite to each other. The first alignment layer is located on a surface of the first substrate facing the second substrate. The second alignment layer is located on a surface of second substrate facing the first substrate. The liquid crystal layer is located between the first alignment layer and the second alignment layer. The first alignment layer includes a porous structure layer and alignment materials. The porous structure layer defines a plurality of spaced filling holes. The plurality of filling holes are perpendicular to the surface of the first substrate. The alignment materials are filled within the plurality of filling holes.