Abstract: To study the transfer behavior of key flavor components in breakable filter capsules to cigarette smoke, 10 monomer flavors components in 5 different capsules were measured by a gas chromatography-tandem mass spectrometry (GC-MS/MS) method. The results showed that:1) The transfer ratios of the 10 key components in the capsules to particulate phase of mainstream cigarette smoke varied from 2.84% to 14.57%. Among which, the transfer ratios of ester monomer flavors and alcohols varied from 2.84% to 9.94% and from 11.85% to 14.57%, respectively. The transfer ratios of alcohol monomer flavors to particulate phase of mainstream cigarette smoke were generally higher than those of ester monomer flavors, while the transfer of limonene was between the two chemical classes. 2) The retention rates of the 10 key components from the capsules by the filters were in the range of 64.03% to 95.52%.