The invention discloses a preparation method and a formula of an aquatic feed. The preparation method of the aquatic feed comprises the following steps of: S1, selecting the following raw materials in a weight ratio: dry flour of yellow mealworms, dry flour of barley pests, dry flour of black soldier flies, puffed
soybean meal,
pregelatinized starch, high-
gluten flour, spirulina
powder, blood worm
powder,
shrimp shell
powder, beer
yeast powder,
bentonite powder,
multivitamin for eels,
glycerol monolaurate,
choline chloride and
calcium dihydrogen
phosphate; S2, uniformly stirring the raw materials to form a mixed
raw material; S3, adding water into the mixed
raw material, continuing stirring, and then puffing the mixed
raw material, wherein the
water content in the mixed raw material is 17-20% by
mass; and S4, after the puffing is completed, cooling and
drying the granulated feed formed by puffing. The preparation method and the formula of the aquatic feed are applied to the technical field of aquatic feeds.