The article describes basic materials and activities for topographic-geodesic and mapping of delimitation and demarcation of the state border of Ukraine. Analysis of existing conditions and trends of cartographic delimitation and demarcation of state borders is conducted. It was established that one of the most important of these stages is the stage of the topographic and geodetic survey. This stage requires a significant financial and organizational constraints of time and money. Some other steps of demarcation works directly depend on topographic and geodetic surveys, because without them it is impossible to conduct cartographic materials updating and their publication. Topographic and geodetic surveys include works of spatial intelligence of state border
areas, collecting toponymic information, thickening state geodetic network, drafting protocols of the border signs and cameral processing of the collected information. Results of the implementation of complex works are description-protocols of topographic and geodetic surveys of state border line, protocols of the border signs, lists of coordinates and altitudes.
Keywords: state border, delimitation, demarcation, geodetic and topographic provision, state geodetic network.