The present invention relates to a method for filling a film of a phase change material (PCM), and a method for manufacturing a PCM filling panel. The method for filling a film of a phase change material comprises the steps of: preparing a flat film which has a predetermined thickness; making a concave-convex structure, which is characterized by a plurality of mountains and valleys, by processing the flat film; filling a filler on the inside of the mountain of the concave-convex structure; bonding a base layer on the lower portion of the valley after filling the filler; filling a phase change material on the inside of the valley of the concave-convex structure; solidifying the phase change material of the film, which is filled with the phase change material and has the concave-convex structure, using a cooling apparatus; and bonding a protection layer on the upper portion of the mountain in a state where the phase change material is solidified. In addition, the method for manufacturing a PCM filling panel may
