The invention relates to the technical field of polypeptide drugs for metabolic diseases, in particular to a
glucagon-like
peptide (GLP-1), a glucose-dependent insulinotropic polypeptide (GIP) and a
glucagon (GCG) triple
receptor agonist (
protein). According to the triple
receptor agonist protein provided by the technical scheme, weight reduction is achieved, meanwhile, lower side effects are shown, and
drug compliance is enhanced. The triple
receptor stimulant researched and developed by the technical scheme can be applied to preparation of medicines with the effects of losing weight, reducing lipid or reducing
blood sugar, solves the technical problem that the existing GLP-1, GIP and GCG triple receptor stimulants are difficult to reduce side effects while reducing
body weight, and breaks through the
weight loss mode that the traditional medicines depend on
appetite suppression; due to the unique action mechanism and good safety, a
safer and more
effective treatment scheme is provided for patients, and the
medicine has wide market prospects and
social benefits.