Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes: a base substrate including a through hole penetrating through the base substrate, an encapsulation region of the base substrate including an edge surrounding the through hole; and a post spacer arranged between the edge of the encapsulation region surrounding the through hole and the through hole. The post spacer includes a first portion made of metal and a post body made of an insulating material, a distance between the first portion and the base substrate is greater than a distance between the post body and the base substrate, and an area of an orthogonal projection of the first portion onto the base substrate is greater than an area of an orthogonal projection of the post body onto the base substrate.