Abstract:In order to provide reference for the development and utilization of Camellia sect.Chrysantha Chang，we studied and analyzed of active ingredients in flowers of 6 Species of Camellia sect.Chrysantha Chang.The content of flavonoids，total phenolics，total saponins and total polysaccharides in blooming flowers of 6 species of Camellia sect.Chrysantha Chang was determined and evaluated comprehensively by principal component analysis and correlation analysis.The results showed that the content of flavonoids，total phenolics and total polysaccharides in blooming flowers of 6 species of Camellia sect.Chrysantha Chang were significantly different.The contents of flavonoids，total phenolics and total polysaccharides were the highest in flowers of C.rosmannii，and the contents of total saponins was at the highest level in the flowers of C.xiashiensis and C.perpetua.The principal component analysis method extracted two main components with a cumulative contribution rate of 95.621%.Two core indexes of flavonoids and total saponins were selected to evaluate the active ingredient quality of Camellia sect.Chrysantha Chang.Through the comprehensive evaluation model equation，from high to low，the comprehensive value of active ingredients in the flowers of 6 species of Camellia sect.Chrysantha Chang were：C.rosmannii＞C.perpetua＞C.longzhouensis＞C.insularis＞C.xiashiensis＞C.euphlebia.There was a significant positive correlation between the contents of flavonoids and the contents of total phenolics in the blooming flowers of 6 species of section Chrysantha Chang.The content of 4 kinds of active ingredient in the flowers of 6 species of Camellia sect.Chrysantha Chang were rich but different，the comprehensive value of active ingredient in C.rosmannii flowers was the highest.