The invention discloses purple sweet potato chips for relieving restlessness and nourishing 
kidney. The purple sweet potato chips disclosed by the invention are prepared from the following raw materials in parts by weight: 250-260 parts of purple sweet potatoes, 17-18 parts of black sesame, 20-25 parts of caraway, 7-8 parts of 
nutrition additives, 6-7 parts of banana pulp, 7-9 parts of black chicken bones, 10-11 parts of passion flower, 4-5 parts of black 
soybean meal, 14-16 parts of peanut sauce, 5-6 parts of mint oil, 8-11 parts of hawthorn fruits, 8-9 parts of 
hericium erinaceus, 4-5 parts of pork 
skin, 1.6-2.2 parts of 
diospyros lotus, 1.9-2.3 parts of tuber fleeceflower stem, 1.5-2.1 parts of 
gynostemma pentaphylla, 1.5-2 parts of 
rehmannia flower, 1.3-2 parts of mint, and 1.6-2.1 parts of 
eupatorium. The purple sweet potato chips disclosed by the invention are simple in process and low in production cost, and is endowed with rich 
nutrition of the purple sweet potatoes; and furthermore, the added food and medicinal materials including black sesame, 
hericium erinaceus, 
rehmannia flower, 
diospyros lotus and the like are high in pharmacological effect, moderate in property and flavour and rich in 
nutrition, and therefore, the purple sweet potato chips disclosed by the invention can be used for improving 
immunity, have the effects of tonifying 
spleen and qi, nourishing 
kidney, 
quenching thirst, clearing heat, relieving restlessness and the like, and are the best 
health food suitable for people of all ages.