Abstract: The present invention relates to an additive composition for shrimp feed and a method for producing the same, and more particularly to an additive composition for shrimp feed and a method for producing the same which both increases the survival and the growth rate of aquacultural shrimp and prevents seawater pollution. The present invention discloses a method for producing an additive composition for shrimp feed, which includes the steps of: mixing microorganisms such as saccharomyces, bacillus subtilis and lactobacillus, natural products such as red ginseng, tangle, agar, salicornia herbacea L, peucedanum japonicum thunberg, sea lettuce, dandelion, atractylodes chinensis, dropwort and Puerariae Radix, and fermented fruits such as apple, orange, mandarin, pineapple and melon; and extracting the ferment from the mixture, which provides an antiviral effect, increases immunity, improves digestion, promotes growth, decomposes remnant feed, etc.