The main component of essential oil were Camphene, Cineol, a-Citral, b-Citral, a-pinene, b-Myrcene, Linnalol, Terpinene-8-ol, a-Curcumene, Zingiberene, a-Farnesene, b-Sesquiphellandrene given both two gingers, the contents of camphene, Cineol, a-Citral, - Citral in Zingiber sp.