One of the most important directions for solving the problem of improving the process of providing geospatial information on the systems of command and control of troops and weapons is the implementation into the practice of the Armed Forces of Ukraine management of military information systems (MIS), representing software and hardware complexes, that was designed to collect, process, store, analyze, simulation and visual display of geospatial information necessary to support decision-making on military command in peacetime and wartime, and tactics digital (electronic) cards and perform military applications (settlement) problems associated with the assessment of operational and tactical planning properties of the terrain and the use of force (means). To this end, the author proposes a conceptual model of a specialized geoinformation system in this article. This model allows us to combine into a single whole the views of researchers on the creation and operation of specialized geoinformation system. In the course of the study, classic methods of analysis and synthesis, methods of decomposition, mathematical statistics, modeling, complex technical systems, and others were used. As a result of the research carried out in the article, the author obtained a conceptual model of a specialized geoinformation system. The given model makes it possible to combine separate theoretical researches, to supplement and improve them and to enter a new scientific level. The proposed research may become a new scientific basis for the development and improvement of existing specialized geoinformation system. The author's proposed model allows describing the functioning of individual subsystems of a specialized geoinformation system, as a whole, and individual subsystems. The practical implementation of the above conceptual model of MIS will provide the provision of geoinformational resources to all information necessary for the management of troops and weapons. A distinctive feature of MIS will be the differentiation of the provision of geospatial data for various parts of the control of troops and weapons systems. In other words, this or that unit of military control will be provided only by the set of geospatial data that is necessary and sufficient for the purpose of the task.