Objective: To investigate influence of different processing methods on quality of Polyporus

and to establish its reasonable origin processing method.Method: Ten kinds of drying methods

including drying in the sun

drying in the shade

drying at different temperature

were adopted to treat Polyporus.Water content

drying rate

total ash and acid insoluble ash contents were determined according to the methods in the 2015 edition of Chinese Pharmacopoeia

phenol-sulfuric acid method was employed to measure the content of total polysaccharides at 625 nm and the content of ergosterol was determined by HPLC.Result: There was small differences in the traits of Polyporus and significant differences in the contents of active ingredients with various processing methods

the drying rate of Polyporus was large under drying at >40℃ and water content was small;under drying at 40

50℃

total ash and acid insoluble ash contents of Polyporus were low

the contents of ergosterol and total polysaccharides were high.Conclusion: In the comprehensive analysis of content of active components

production costs and other factors

drying at low temperature (40

50℃) is the appropriate processing method for Polyporus.