In order to find more disease-curing suiting constituent,the QIAI lighted cigarettes was extracted by two solvents: methanol-benzens and n-butanol,respectively.25 and 31 of structures and chemical compositions were identified in the ertract by GC-MS,they are mainly fat deposits,aromatic hydrocarbon comounds and Tie,Tie category oxides from the QIAI product of incomplete,QIAI volatile oil and its oxidation products.