Abstract: The mud crab (Scylla serrata Forskal, 1775) is a kind of the important marine culture species in China, and its culture is developing in large scale, and given out huge economy and social benefit.Mud crab culture is regarded as a new economy-gaining point.The trail results using the series formulated diets to feed Scylla serrata showed that the developing diets can meet the nutrient requirements and feeding habit for different stages of mud crabs, diets can improved the crabs to ecdysis, grow normally, and had good attractive, stability in water.The growth rate and survival rate of crablets fed with formulated diets were higher during 32 d; The mean final livability of Scylla serrata for 90 days was 75.9%, mean final body weight was 205.0g.