Abstract: This work is aimed at further determining the chemical components of the essential oil from China fir (Cunninghamia lanceolate Hook.). In the experiment the essential oil is obtained by distillating from the China fir shaving and the essential oil is identified with GC/MS technique. The components of the essential oil are further quantitatively determined with two different columns. It is found that there are thirty nine components in which cedrol is a major component and the others such as α-pinene, α-cedrene, α-elemene, β-elemene, δ-elemene, β-caryophyllene, etc., The twenty six new components of the thirty nine components are found and identified by this work, e. i. fenchyl alcohol, α-trans-β-bergamotene, β-caryophyllene, thujopsene, acoradinene, β-selinene, etc.