Essential oil of Lamium purpureum L. was investigated and main components of the odor of this plant were found to be alcohol and phenol. Thus far, 1-octen-3-ol, cis-3-hexen-1-ol, phenethyl alcohol, benzyl alcohol, phenol, 0-, m-, and p-cresols, guaiacol, eugenol, 15 kinds of fatty acid, and 21 kinds of paraffin were isolated and identified.