Topic relevance: determined by the prospect of lithium ore mining, the need for its economic andfiscal research. Statement of the problem: substantiation of studies of promising and powerful naturalresource potential of lithium deposits according to the need–resource approach, development of thescientific base of lithium subsoil use.The purpose and tasks of research. The purpose of the research: to analyze the peculiaritiesand prospects of the mineral resource base and to substantiate the range of concepts of ultra–lithiumresources in the scientific directions of lithium resource engineering. Tasks of the research: to initiatethe application of the resource–resource approach to the display of the results of the study of lithiumsubsoil use; take into account the factor of national ownership of the subsoil; substantiate the signsof lithium resources; highlight the resource aspects of lithium deposits in combination with otherelements; start the development of lithium resursonics.Methodology and methods of research: resource–oriented and natural–resource approaches tothe information display of the results of subsoil use; principles of complexity, historicism in research; logicalsubstantiation of the essence of technical and technological objects and processes in ore subsoil use.Research results. It is substantiated that lithium resource science studies: the needs of thepeople, the country’s economy, domestic and international trade in lithium resources; minerals inscientific terms; natural conditions of formation and their modern placement in the bowels; the naturalessence of substances, their chemical composition and physical properties; environmental featuresand consequences of mineral extraction and use, measured by certain indicators.Field of application of results: lithium.Conclusions according to the article: systemic development of the lithium industry is promising forthe world, Ukraine, its population, territorial communities, therefore the industry should be financedaccording to growing needs, at the expense of domestic investors.