This paper briefly reviewed the significant achievements on geological remote sensing in China in the 20th century

and illustrated four momentous breakthroughs: plate tectonic demonstration and linear style analysis

digital geology and ore prospecting

the discovery of quaternary geology and geomorphology

routes selection and sites selection of engineering geology. The paper indicated the new tasks of land resources investigation in the 21st century. There are urgently needs for intensifying the research on remote sensing information mechanism

information fusion and sharing

interdiscipline

capabilities of socio-economic statistical and spatial analysis

and attention on moon-probing plan and remote sensing mapping.