On consideration of comparing the quality of rose essential oil extracted by the methods of steam distillation, solvent extraction, and supercritical CO2 extraction, the essential oil composition were analyzed by GC-MS. The results show that there are 56 components in supercritical CO2 extraction oil, with higher alcohols and esters as the main ingredient, and its esters content was the highest among the three kinds of oil, up to 13%, Besides this, its characteristic fragrance ingredients were as high as 4.568%. Its fragrance was sweet and full, and has a heavy elegant bottom fragrance, of which fatty odor was very light, while faint scent was prominent; The essential oil obtained by steam distillation extraction method has 60 components, with higher alcohol as the main ingredient, up to 78%, and its main aroma components was the highest, which was 71.037%, but its phenylethanol aroma content was only 0.711%, which made it give sweet smell, but slightly thin, with the lack of the honey-like aroma; The essential oil obtained by solvent extraction method has 48 components, with higher alcohols and esters as the main ingredient. Its flavanone classes was relatively high, reaching 4.257%, therefore, its fatty odor was heavy, while fragrance flavor was not outstanding, with poor natural sense.