The pyrolytic products of Dendrocalamus barbatus organism body is of important value in healing some diseases. Therefore, the determination of the chemical components from the five-year-old Dendrocalamus barbatus was made by using Py-GC/MS. The results indicated that the main components of the Dendrocalamus barbatus by Py-GC/MS analysis were carbon dioxide (54.34%), 2-butanamine, (s)- (17.4%), oxirane, (ethoxymethyl)- (8.29%), methyl formate (4.14%), 1,6-anhydro-.beta.-d-glucopyranose (3.27%), benzaldehyde, 4-nitro-, o-methylox (1.35%), 1-hepte...