The volatile components in the leaf,stem and root of Solidago Canadensis L.were analyzed by gas chromatography-quadrupole time of flight mass spectrometry(GC-QTOF MS).Total of fifty four compounds were found using a multidimensional qualitative analysis approach consisting of NIST MS search,accurate mass measurement retention index and area normalization.Terpenes such as limonene,pinene,germacrene D were identified as the major volatile components existing in the root,stem and leaf of Solidago Canadensis L.Results showed that GC-QTOF MS with high separation efficiency and high mass accuracy could be widely applied in the detection of the volatile components in complicated matrices.And the multidimensional qualitative approach could simplify molecular characterization and structural confirmation.