Abstract: The chemical characteristrics of oleoresin from Pinus bungeana Zucc. was studied. It contains 25 contents. The amount of its monoterpenes is about 47.0% and that of β-pinene is as high as 24.8%. The chemical compositions of oleoresins of 16 species from sub-gen. Strobus and subgen. Pinus were also analyzed by GC and GC-MS. The amounts of isopimaric acid, palustric acid/levopimaric acid, lambertianic acid and abietic acid in P. bungeana oleorensin differ from that of subgen. Strobus, and is similar to that of subgen.Pinus .

Key words: Pinus, P．bungeana, Oleoresin, Chemotaxonomy