Feed additive for juvenile lobsters

The invention discloses a feed additive for juvenile lobsters. The feed additive is prepared as follows: grinding 7-9 parts by weight of a Chinese herbal medicine mixture into a 100 mesh fine powder, mixing evenly, adding 0.1-0.2 part by weight of EM microbial inoculum, 3-5 parts by weight of corn flour and 1-2 parts by weight of black bean flour, fermenting, drying and grinding into powder, mixing evenly with 0.2-0.3 part by weight of multivitamin, 0.1-0.2 part by weight of garlic powder, 1-2 parts by weight of squid fat, 0.4-0.6 part by weight of bentonite, 0.1-0.2 part by weight of calcium dihydrogenphoshate and 0.2-0.4 part by weight of a binder, prilling, and then obtaining the feed additive.