This paper deals with the surveying and mapping of the Szentgáli-kőlik, which is the largest dolomite cave in Hungary (length: 420 m, vertical extent: 43 m). For the surveying we used a Leica ScanStationC10, four Leica-targets, 80 fluorescent wooden cubes, many traditional tripods and pillar-tripods of the kind Wild. We measured altogether on 38 stations. We did not measured separately each control points (this accelerated the field measurements), so that is why we could fitting the stations only manually by the pre-processing, what we have managed with the Leica Cyclon 9.1 software. The accuracy of fitting was under 10 centimetres, which was satisfactory for our purposes (cave surveying do not need a strict accuracy). For the further processing we used a Point Cloud CAD 2010 and the AutoCAD software. We prepared a ground plan, cross-sections and a section, using the official UIS (International Union of Speleology) list of cave symbols and mapping rules.