On the basis of introducing the sandstone-type uranium deposits in the world, the authors focus on some results of their research on geological settings and mineralization type of sandstone-hosted uranium ores in Nong Son basin, where the occurrence of uramium ores distributed in the sandstones of Nong Son formation (T3n-r ns) have been discovered at various locations. The results of study and actual comparison with the geological and mineralogical criteria for sandstone-type uranium deposits show that the sandstone-hosted uranium deposits in Nong Son basin are mainly of tabular type, where the uranium ore bodies are in the form of thin beds (sheets) or strings of lenses distributed at the boundary between the oxidized and reduced zones on the side of the reduced zone and the ore bearing rocks are mainly fine to coarse grained arcosic sandstone of gray color, very similar to the Domisiat uranium deposit in India.