The component composition of volatile compounds of rhizomes with roots, leaves and flowers of Hosta lancifolia was investigated by the gas chromatography technique. As the result of the research, 62 volatile compounds collectively were identified in the all types of studied plant raw material. 27 compounds were found in leaves. 34 and 32 compounds were determined in flowers and rhizomes with roots respectively. The total content of volatile compounds in the rhizomes with roots is 3635.5 mg/kg. Volatile compounds contained in leaves and flowers in an amount of 3204.9 mg/kg and 654.2 mg/kg respectively. Carboxylic acids and their esters were dominant in rhizomes with roots in the qualitative composition and quantitative content. The terpene compounds dominated in leaves. The major groups of organic substances that were found in Hosta lancifolia flowers were aldehydes, ketones and paraffin hydrocarbons.