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Cinnamomum camphora is a large evergreen tree that grows up to 20–30 metres tall.It is native to southeast China,southern Japan and Indochina,where it is also cultivated for essential oil,timber production and landscaping.Cinnamomum camphora fruits contain more than 30% oil,and the relative content of medium chain-length saturated fatty acids (capric acid and lauric acid) are more than 75%.The oil is a potential resource for light biodiesel.According to the differences of essential oil in leaves,Cinnamomum camphora is separated into five chemical variants called chemotypes,which are camphor,linalool,cineole,nerolidol or borneol.It can be distinguished by their odour.Fiber morphological feature,vessel morphological feature and wood basic density have no significant differences among five chemotypes.The aim of our work is to learn about the fruit oils,and to compare them among five chemotypes.Cinnamomum camphora fruit oil was extracted by Soxhlet method and acid value (AV),saponification value (SV) and iodine value(IV) were determined.Fatty acid methylic esters were prepared by acid catalysed esterification method and the profiles were analysis on a gas chromatography.The oil yields ranged from 34.32% for linalool chemotype to 39.54% for camphor chemotype.The results revealed that the chemotypes differed significantly with each other as far as total oil contents were concerned.The range of AVs (1.40-2.14 mg KOH/g) was low.It might render the process of refining a bit easier.The range of SVs from 264.89 to 270.45 mg KOH/g indicated that the oils held fatty acids with medium chain-length fatty acids.Indeed,the range of SVs for Cinnamomum camphora was quite similar to that of coconut oil(253-268 mg KOH/g).Low IVs (6.88-8.95) might be indicative of low level of unsaturated fatty acids in the oils.Ten fatty acids were identified in the oils.Capric and lauric acid were the two major fatty acids constituent,ranging from 31.20 to 55.37% and 22.49 to 44.94% respectively.Interestingly,the content of lauric was higher than that of capric in camphor,however it was contrary in other four chemotypes.The saturated fatty acids were predominant in all oils as confirmed by the IV test.The total contents of unsaturated fatty acids ranged from 13.82 to 30.06%.oleic acid was the main unsaturated fatty acid with 7.22-19.02% in the oils.The results,might therefore offer a scientific basis for use of the Cinnamomum camphora fruits,both in the human diet and renewable energy.