Traditional Chinese medicine has a long history in China,Chinese herbs was an important part of it. Pogostemon cablin(Blanco)Benth. and Agastache rugosus (Fisch.et Mey)O.Kuntze. has the character of aromatic plant and Chinese herbs, essential oil was the main component. In the research, Agastache rugosus in Xinjiang was choosed as material. This paper objective to optimize the extracting procedure of essential oil, determining essential oil rate from different parts of Agastache rugosus, analysing component...