Chitin and chitosan are the most abundant aminopolysaccharides and also one of the most plenty biopolymers in nature, which are widely used in industries such as pharmaceuticals, cosmetics, medical ,therapeutic and food due to their characteristics such as high biocompatibility, low toxicity, low biodegradability, powerful antimicrobial properties, and medicinal properties. The source of the production of these biopolymers is the waste (shell) of marine crustaceans such as shrimp, crab and lobster. The use of these wastes in order to produce such valuable materials is considered a profitable bio-recycling. According to global statistics, about 40 to 70 percent of the sea crustaceans caught become waste every year, and a huge amount of this waste is left unused in our country yearly. In this area, the extraction of chitin and chitosan from these wastes can be economically profitable and cost-effective because the majority of domestic industries’ needs for chitin and chitosan and their derivatives are provided through imports.