Soy peptide is a small molecule fragment consisting of 2 to 10 amino acids, whlich is fermented from a large molecule of soy protein, including 9 essential amino acids that can not be synthesized by the human body. Soybean peptide is a small molecule protein, which is very easy to be absorbed by human body. It is suitable for people who are poor in protein digestion and absorption, such as middle-aged and elderly people, postoperative recovery patients, tumor and radiotherapy and chemotherapy patients, gastrointestinal dysfunction.