Objective: To establish characteristic spectra of volatile components in drying flowers of Plumeria rubra cv. Acutifolia by gas chromatography (GC) and determine contents of linalool

geraniol and nerolidol. Method: GC was employed to determine contents of index ingredients in drying flowers of 20 batches of P. rubra cv. Acutifolia and 3 batches of P. rubra

then GC characteristic spectra of volatile components in drying flowers of P. rubra cv. Acutifolia was established in order to investigate differences between P.rubra cv. Acutifolia and P.rubra. Result: Eleven peaks were selected as characteristic peaks to assess similarities of different samples from different origins.There were significant differences in characteristic spectra between P.rubra cv. Acutifolia and P.rubra. Samples were divided into two categories

P. rubra was one of them.Contents difference of volatile ingredients in 20 batches of P. rubra cv. Acutifolia were great. Conclusion: This method is quick and simple

which can be used as an effective mean for quality evaluation of volatile ingredientsin P. rubra cv. Acutifolia.