Abstract: By using correlation analysis and stepwise regression analysis,the correlation between effective components of Burk (Panax Notoginseng)and meteorologicalfactors,including air temperature,precipitation,sunshine duration and relative humidity was systematically analyzed to identify the key factors which influenced the effective components of Burk (Panax Notoginseng).The results showed that the precipitation in January and annual temperature difference were the key factors influenced the total saponins content of Burk.The more precipitation benefited the accumulation of flavonoids,but restrained the accumulation of the total saponins,polysaccharides and dencichine.

Key words: Burk (Panax Notoginseng), Burk (Panax Notoginseng), Meteorologicalfactors, Effective components, Stepwise regression analysis