The invention discloses whole potato flour and rose biscuits and a processing method thereof, and belongs to the technical field of food processing. The biscuits are prepared by processing the following raw materials in parts by weight: whole potato flour, potato starch, coarse cereals, low-gluten flour, rose petals, perilla herb oil, lactic acid bacteria, milk powder, prebiotics, sesame seeds, soybean oligosaccharides powder, xylitol, red jujubes, jujube kernels, white granulated sugar, baking powder and an appropriate amount of iodised salt. According to the whole potato flour and rose biscuits disclosed by the invention, potatoes are used as main raw materials, and the flour, the rose petals, the red jujubes and the like are matched, so that the taste of conventional biscuits is enriched, the nutrient components are increased, besides, the biscuits have the health care efficacies of strengthening the liver, nourishing the stomach, promoting blood circulation for regulating menstruation, nourishing bodies, soothing the nerves and the like, and a new thinking is provided for potato biscuits. In addition, the components of the prebiotics and the lactic acid bacteria are added, and the potatoes, roses and Chinese jujubes are matched, so that dietetic invigoration and internal regulation are combined, the health care effects of the whole potato flour and rose biscuits are better than those of single dietetic invigoration, the biscuits further have the efficacies of expelling toxins and nourishing faces, and the whole potato flour and rose biscuits are deeply loved by vast female consumers.