Abstract: The goal carries on the quality analysis to three kinds of different multi- peptides class biological preparations, uses and the highly effective liquid phase chromatography compared with its quality and the component difference method carries on the content and the component determination to more than three kinds of peptides class biological preparations, applies the TU-1810 ultraviolet - obviously spectrophotometer and Waters the alliance2695 2,996 highly effective liquid chromatographies system result under the designation condition, obtains its main component content result conclusion method to be simple, accurate, fast, carries on the quality analysis to more than three kinds of peptides class matter, seeks its general character and the characteristic