Glycine insulin is a kind of protein, preservation of Glycine insulin requires high ambient temperature, Glycine insulin is easy to be denatured and inactivated under high temperature, unopened Glycine insulin should be kept in the refrigerator for chilled preservation in summer, and unopened Glycine insulin can be placed in a cool place for preservation. It is recommended to store the unopened insulin in the refrigerator at 2~8℃, and be careful not to place it in the freezer or the cooling device close to the refrigerator. Unopened Glycine Insulin can be placed in a room temperature environment not exceeding 30℃ for 4~6 weeks, taking care to prevent exposure to sunlight. Patients who need to use Glycine Insulin are advised to go to regular hospitals for consultation, and store and use Glycine Insulin correctly under doctor’s instruction, so as to avoid adverse consequences.