肽文库是一定长度肽段的混合物,里面包含所有可能的氨基酸排列信息。肽文库可被分为两种,一种是合成肽文库（synthetic peptide library）,另一种是噬菌体肽文库（Phage peptide library）。关于这两种肽文库及其在免疫学的研究中的应用,在1997年国外医学免疫学分册上已有较好的综述。在此文中,仅对合成肽文库及其在免疫学研究中的应用谈一点我的理解,并介绍一下我采用合成肽文库做的一点工作。 Peptide libraries are a mixture of peptides of a certain length that contains all possible amino acid sequence information. Peptide libraries can be divided into two types, one is the synthetic peptide library and the other is the Phage peptide library. About these two kinds of peptide libraries and their application in the study of immunology, in the foreign medical immunology volume in 1997 has been a good overview. In this article, I will only discuss my understanding of the synthesis of peptide libraries and their use in immunological research, and describe some of the work I did with synthetic peptide libraries.