The invention provides adult fish feed of snake head mullets. The adult fish feed consists of the following components according to the weight parts of air-dried objects: 21-24 parts of fish meal, 3-4 parts of hydrolyzed fish protein powder, 7-9 parts of pork powder, 3-5 parts of spray-drying blood cell protein powder, 3-4 parts of shrimp meal, 4-5 parts of shrimp shell meal, 2-3 parts of euphausiid meal, 10-13 parts of fermented soybean meal, 3-5 parts of fermented cottonseed protein, 2-6 parts of peanut meal, 13-16 parts of flour, 7.5-10 parts of cassava starch, 1.5-2.5 parts of fish oil, 1-2 parts of soybean oil, 1-2 parts of soybean phospholipid oil, 1.5-2 parts of calcium dihydrogen phosphate, 1 part of a Chinese herbal medicine compound preparation and 2 parts of premixed material additives, wherein the Chinese herbal medicine compound preparation consists of the following materials according to the weight parts of the air-dried objects: 12 parts of honeysuckle flower, 10 parts of safflower, 8 parts of Indian buead, 6 parts of tuber onion seeds, 7 parts of thinleaf milkwort root-bark, 7 parts of Chinese dodder seeds and 50 parts of rice hull powder. The adult fish feed provided by the invention can be used for enhancing the immunity of the snake head mullets and preventing from infecting visceral sarcoidosis, also has a relatively good treatment effect on the snake head mullets suffering visceral sarcoidosis, and can be used for improving the survival rate of breeding of the snake head mullets.