系统地介绍和评述了β－氨基酸和β－多肽的合成、以及β－多肽的二级结构与性质等研究领域近年来的进展。β－多肽具有可预测和可再生的折叠形式、二级结构多样性、对酶稳定等优点，在药物及催化剂领域中有很广阔的应用前景 The recent progress in the field of the synthesis of β-amino acids and β-peptides, and the secondary structure and properties of β-peptides has been systematically introduced and reviewed. β-polypeptide has predictable and renewable forms of folding, secondary structure diversity, the advantages of enzyme stability, in the field of drugs and catalysts has a very broad application prospects