In this paper,the amino acid composition and content of Guangxi Baise slug dry powder were analysed by reversed phase high-performance liquid chromatography. All protein and peptide amino acids were found in this dry powder.Among them the content of histidine、glutamine and proline was very high,and the content of glysine、methionine was very low. The content of essential amino acid of human body was also high in this powder.which matched well with a man's day necessary of it.This result shows that:th...