Objective:To analyze the chemical constituents of volatile oil from the leaves of Camellia chrysantha. Method: By extracting C. chrysantha with 75% ethanol

the filtrate was concentrated and extracted with ether to get the ether parts

and the chemical composition was identified and analyzed by GC-MS method. Combining with computer retrieval technology and search of national institute of standards and technology(NIST) compound spectral-library for identification

their relative content was determined by the area normalization method. Result: Sixty-one kinds of chemical constituents were isolated from the ether parts of C. chrysantha. The relative content is 78.41% in the total content

the main chemical ingredients were 2 -( oxo-18 alkyl) ethanol

two pentadecane

1-iodo-hexadecane

and so on. Conclusion: The present GC-MS method is fast

simple and accurate to analyze the composition of ether parts of C. chrysantha. It initially revealed the chemical composition of the medicine

and provided the experimental basis for further study of its chemical composition and the medicinal quality evaluation.