Acetyl-Neurotensin (8-13) is composed of 6 amino acids. The amino group of the N segment of the sequence and acetic anhydride form a stable structure. Therefore, the side chain guanidine group of Arg in the sequence plays a major biological function. In terms of peptide synthesis, the production process of Acetyl-Neurotensin (8-13) is relatively simple, and due to the addition of Arg, Acetyl-Neurotensin (8-13) has relatively good water solubility, which is convenient for the separation and purification of peptides.