The invention discloses seafood dressing and a making method thereof. The seafood dressing comprises the following raw materials of 30-50 parts of ghost crabs, 10-20 parts of shrimps, 10-20 parts of fish, 8-12 parts of crabs, 4-5 parts of ginger, 2-4 parts of Baijiu, 2-4 parts of edible salt, 0.5-2 parts of crystal sugar, 8-12 parts of water, 0.2-0.3 part of an additive and 4-5 parts of fir wood charcoal, and in addition, the seafood dressing also comprises freshness enhancement condiments: 10-15 parts of kelp, 15-20 parts of laver and 4-6 parts of shiitake mushrooms, fruit condiments: 0.5-1 part of plums, 0.5-1 part of prunes and 1-1.5 parts of haws, and neutralization condiments: 1-2 parts of coffee beans, 1-2 parts of sweet-scented osmanthus and 2-3 parts of brown sugar. According to the seafood dressing and the making method thereof disclosed by the invention, the ghost crabs are used as a main material, the shrimps, the fish and the crabs are used as complementing materials, so that the primary taste of the ghost crabs is reserved, the palatable taste of the seafood dressing by adding the shrimps, the fish and the crabs can be increased, and the mouth feel of the seafood dressing is better than that of a conventional ghost crab sauce; and besides, the price of the seafood dressing by adding the shrimps, the fish and the crabs is lower than that with the equal quality, so that the interest cost of the dressing disclosed by the invention is also reduced.