Abstract: More than 37 components in the residue oil obtained from distillation of borneol from Sect.Camphora twigs and leaves were detected,among which 34 compounds were identified by GC/MS.The main of them are camphor(33.3%), d-borneol(31.3%),γ-muurolene(3.73%),α-pinene(5.5%),β-pinene(4.4%),1,8-cineole (1.48%), α-guaiene(1.18%),α-terpineol(1.65%),α-copaene(1.3%) and (+)-aromadendrene(2.1%).

Key words: residue oil, camphor, borneol, GC/MS