Hairtail has less fat thorns, delicious taste and rich nutrition. Every 100g hairtail contains protein 18.4g, fat 4.6g, phosphorus, iron, calcium, zinc, magnesium, vitamins A, B 1, B2 and other nutrients. Hairtail contains more unsaturated fatty acids and longer carbon chain of fatty acids, which can reduce cholesterol. It is an ideal nourishing food for the elderly, children and pregnant women. Hairtail has certain medicinal value. According to the ancient and modern medical and aquatic medical records in China, hairtail has the functions of nourishing liver, expelling wind and stopping bleeding, and has a good curative effect on bleeding, sores and carbuncle. Fish scales are raw materials for preparing antipyretic and analgesic tablets and anti-tumor drugs. Fish scales contain a variety of unsaturated fatty acids, which have a significant effect on lowering cholesterol. It is suitable for people with chronic illness, blood deficiency, dizziness, shortness of breath, fatigue, eating less and losing weight, and malnutrition. Chinese medicine believes that it can stimulate appetite, warm the stomach, tonify deficiency, and moisturize and beautify, but people with scabies should eat less.