Abstract. A new information software technology has been created, which is implemented in a software package and is destined to perform a wide, easily supplemented set of basic operations on polycomponent structures, including non-oriented trees and saplings. It provides the ability to work with objects containing up to 65536 nodes that can be placed on 6400 X-levels and requires (including personal numbers) only 4 bytes of information for each node. Possessing wide functional and applied capabilities, the technology excludes the need to use matrices and lists as means of formalized representation of the objects under study. For its use, it does not require the development of a significant part of previously obtained results, minimizes user participation and greatly reduces the cost of technical resources and time in the research process.

Keywords: graph-tree, non-oriented tree, sapling, mixed forest, a set of software tools.