The invention provides an alignment film material, a making method of an alignment film, as well as a liquid crystal display panel and a making method thereof. The alignment film material disclosed by the invention comprises a polyimide main chain, a plurality of reaction type branch chains connected to the polyimide main chain, and a plurality of non-reaction type branch chains connected to the polyimide main chain. The making method of the alignment film disclosed by the invention is simple in making process, and the alignment film material is used for making the alignment film. According to the making method of the liquid crystal display panel disclosed by the invention, the alignment film is prepared according to the making method of the alignment film, the making process of adding reaction monomers to liquid crystal molecules is omitted, the making process of alignment of liquid crystals is simplified, reaction monomers which do not incompletely react are prevented from remaining in the liquid crystal molecules, and the quality of the panel is improved; and the made alignment film generates a uniform polymer network on a UV illumination rear surface, the alignment effects of the liquid crystals are promoted, and the angular field of the panel is extended. The liquid crystal display panel and the alignment film disclosed by the invention adopt the alignment film materials, so that the alignment effects of the liquid crystals are good, and good display quality is obtained.