The bioactive components of acetone/ethanol extractives of Moso bamboo root was identified by 600°C-based Pyrolysis-GC/MS. 45 compounds representing 96.31 % of the total areas were identified from these 47 peaks. The main components in the 600°C pyrolyzate of benzene/methanol extractives of Moso bamboo root by Pyrolysis- GC/MS analysis are as: Phenol, 2,6-Dimethoxy- (12.58%), 4-Hydroxy-2-Methylacetophenone (9.53%), 3′,5′- Dimethoxyacetophenone (8.15%), Mequinol (7.84%), 2-Propenoic Acid, 3-(2-Hydroxyphenyl)-,(E)- (7.49%). Gamma.-Sitosterol (3.62%), 1,3-Benzodioxole, 5-(1-Pr...