This paper considers state-of-the-art, problems and possibilities of developing new technologies and machines harvesting and processing of medicinal and aromatic plants from the viewpoint of utilizing extensive of plant species under Yugoslav economic conditions.

In the analysis of medicinal and aromatic plant production prominence was given to scientific and technological aspects of developing and applying modern mechanization in the production process- from the field to the final product. The role of genetics and selection was explained for the improvement of physical and mechanical properties of plant species that can produce high yields of quality drugs by the rational use of modern harvesting and primary processing machines.

On the basis of discussion and conclusions, the authors explain their conception of scientific approach to the check of new technologies as well as to relevant parameters for developing new systems of drug harvesting and processing machines.

The concept of development is based on the results obtained by investigating physical and mechanical properties of different plant materials, significant in defining relevant parameters for the development of working tools, machine mechanisms and machine systems for quality drug production.

Key words: medicinal and aromatic plants, production, economic conditions, machines, development, application.