Pupa has a high nutritional value, protein, fat and linoleic acid type compound amino acids and other trace elements in bee-rich easy to be absorbed, so since early humans took as an edible insect pupa. The current production of silkworm food is generally divided into direct consumption and extraction of silkworm chrysalis as food additives in some types of material. The full price of silkworm protein as a protein, amino acid variety, which contains 18 amino acids, 8 essential amino acids the human body the total amount of 53.45%, more than 36% under the World Health Organization standards, compared with pork, mutton, eggs , essential amino acids contained in milk several times higher, and the essential amino acid balance is good, relative proportions of the desirable. Pupa protein hydrolyzed compound amino acids, essential amino acid index and similar fish, shellfish, more close to the effectiveness of casein protein, is high-quality nitrogen source. Our application of modern biotechnology and chemical technology development chrysalis protein powder, silkworm chrysalis protein hydrolysis products for the food industry, pharmaceutical industry, chemical industry raw materials and additives.