The richness of the flora of the USSR, the presence on its territory of vast thickets of many medicinal plants and the enormous introduction capabilities of various regions make it possible to widely use plant resources for medicinal purposes. The authors of the book attempted for the first time to systematize and summarize numerous materials related to the technology of phytochemical production. Described are separate technological processes and types of equipment used in phytochemical production, as well as methods of producing 84 medicinal substances from plants. For engineering and technical workers of the medical industry, specialists in the field of phytochemistry, students of pharmaceutical faculties of universities.