Eriocheir sinensis is also called crab, hairy crab, clear water crab and hairy crab. Eriocheir sinensis contains protein, fat, carbohydrate, calcium, phosphorus, vitamin A, vitamin B 1, vitamin B2, nicotinic acid and other nutrients. The muscle of Eriocheir sinensis contains more than ten kinds of free amino acids, among which glutamic acid, glycine, arginine, cystine, alanine, proline and histidine are rich. Besides,