The volatile components in fruiting bodies of Flammulina velutiper and Agrocybe chaxingu were extracted with simultaneous distillation and extraction(SDE) and analyzed by gas chromatography-mass spectrometer(GC-MS).There were 32 and 31 volatile components identified in Flammulina velutiper and Agrocybe chaxinggu,respectively.Phenols and aldehydes were the dominant volatiles.The main component of Flammulina velutiper were identified as butylated hydroxytoluene,benzeneacetaldehyde,5-methyl-2-furancarboxaldehyde,2-methyl-phenol,2,5-diethyl-pyrazine and indole.Among 31 components in Agrocybe chashugu,butylated hydroxytoluene,2-pentyl-furan,benzeneacetaldehyde,phenylethyl alcohol,2-methyl-heptane and indole were the main components.The study provided experimental foundation for comprehensive utilization of mushroom.