Through reviewing literature in recent years

we summarized research state about the chemical compositions of Polyporus umbellatus

including polysaccharide

steroidal ingredients and other ingredients. And we systemized the factors which impact the quality

such as species

habitats

cultivation

harvest and processing. Then we compared and analyzed the extraction

identification and content determination methods which were used to evaluate the quality of P. umbellatus. As a kind of commonly used traditional Chinese medicines

the quality can affect the efficacy in clinical use. By reviewing the affecting factors and evaluation methods

a reasonable basis is provided to ensure the quality of P. umbellatus.