Acid hydrolysis peculiarities of chitin-glucan complexes of higher fungi and dead bee chitin have been studied. The technology of extraction and purification of high quality D (+)-Glucosamine hydrochloride from hydrolyzate was developed. The composition, properties, and purity of the product were analyzed using a complex of physical and chemical methods. The yield of final purified product was 20–60 % depending on the content of chitin in the samples of CGC. As a result we had amino sugar which was white crystalline powder, odorless, readily soluble in water, slightly soluble in alcohol and insoluble in chloroform and in other types of organic solvents, which corresponds to the quality of standard D (+)-Glucosamine hydrochloride.