The invention relates to a complete feed for young stichopus japonicas cultivation, which is characterized by consisting of the following components by weight percent: 25% of gulfweed powder, 20% of sargassum thunbergii powder, 25% of kelp powder, 25% of scallop skirt, 2.5% of shrimp powder and 2.5% of soybean flour. The additive comprises the following components with the suitable weights: dried yeast, rhodotorula benthica, VA (Vitamin A), VB1 (Vitamin B1), VB2 (Vitamin B2), VB12 (Vitamin B12), VB6 (Vitamin B6), VE (Vitamin E), VD (Vitamin D), VK (Vitamin K), VC (Vitamin C), glycine, calcium pantothenate, alanine, nicotinic acid, lysine, methionine, arginine, threonine, xylooligosaccharide, isomaltose hypgather, mannan oligosaccharide, beta-glucan, amylase, lipase, protease, carboxypeptidase, cellulose and erepsin. The added amount of the sea mud is 7.5 kg (on a dry weight basis of the sea mud) / 500 g of young stichopus japonicas basal feed. The problem that the high yield of artificial cultivation of young stichopus japonicas is restricted by the stichopus japonicas feed on the market can be solved.