Conclusion: The main constituents in the essential oil from Gaultheria yunnanensis. are salicylic acid methyl ester (74.结论：透骨香挥发油主要化学成分是水杨酸甲酯(74.18%)、十六烷(1.59%)、十五烷(1.38%)、2-羟基－4甲氧基苯乙酮(1.09%)等。