The Geographic Information System (GIS) of Mineral Resources, Mineralgenesis and Tectonics of Northeast Asia is established. It integrates the information of geography, geodynamics, ore deposits, placers and metallogenic belts in Northeast Asia, involving Russian Far East, Eastern Siberia, Northeast China, Mongolia, the Korean Peninsula and Japan. The system can provide a convenient support to the storage, process, analysis, search, share and promotion for the data of mineral resources and geological exploration in the region.