Dragon fish is also rich in protein, fat, vitamin A, calcium, iron, phosphorus, magnesium and other trace elements, as well as vitamins and other nutrients, which can supplement the needs of human physiological health, enhance human physique and immunity, and is beneficial to human health. Longli fish is rich in unsaturated fatty acids, which is often eaten in moderation, which is helpful to the brain development of children and has a preventive effect on heart disease in middle-aged and elderly people. The omega -3 fatty acids contained in Longli fish can effectively reduce the occurrence of lens inflammation in human body and have a protective effect on vision.