Phyllostachys heterocycla, who was considered to have biohealth function in folk, is becoming a major biomass in rooms. Therefore, the chemical components from Phyllostachys heterocycla were identified by TD-GC/MS at different temperature. The main function components of Phyllostachys heterocycla biomass at 40°С were 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(21.32%), [1,1':3',1''-terphenyl]-2'-ol(9.16%), (2,3-diphenylcyclopropyl)methyl ph enyl sulfoxide, trans-(6.54%), cedrol(6.11%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-,...