The document discusses modern geo-information techniques used in land management and administration. It provides an overview of the use of geographic information systems (GIS) and remote sensing at the Royal University of Agriculture's Faculty of Land Management and Administration in Cambodia. Specifically, it covers the current situation of modern techniques at the faculty, methodological background of GIS, applications of GIS and remote sensing, challenges and opportunities of using orthophoto maps, and concludes with the current situation in Cambodia.