Disclosed are a stabilizer for storage of a biological sample, a composition for storage of a nucleic acid and/or a polypeptide in a biological sample under non-freezing conditions, a kit comprising the composition, a mixture comprising the composition and a biological sample, and a method for storage of a nucleic acid and/or a polypeptide in a biological sample under non-freezing conditions. The integrity and stability of the nucleic acid and/or polypeptide in a biological sample can be stored for a long time under non-freezing conditions by using the stabilizer according to the invention, and therefore the stabilizer has a good application prospect.
