The essential oil extrated from the stem of Schisandra perulala Gagnep. was prepared by steam distillation of fresh materials in a glass for 3h. The essential oil yields was 0.31 percent from the stem (in absolute dry material). The essential oil from the stem of Schisandra perulala Gagnep. analyzed by GC/MS consists of 45 constituents identified accounting more than 95.21 percent of the oil. The major components ofthe essential oil from the stem of Schisandra perulala Gagnep. are: zingiberene a (14.77 percent), cadinene d (12.21 percent), santalene a (9.60 percent), muurolol epia (8.20 percent), Cadinene g (6.49 percent), curcumene ar (5.07 percent), cubenol lepi (4.28 percent), copaene a (4.02 percent) and all rest components with a content from 0.1 to 3.91 percent.