Using the multiinformation integration and assessment system,the auth ors have assessed the national endogenous gold resource.At first, an assessment geological model was set up.According to the selected metallogenic factors, the authors constructed the national gold integrated information concepttype gold search model and determined 103 prediction tracts for gold deposits.Among them the authors selected 12 model tracts and 12 prediction variables.Then a guantitalive assessment of the national gold resources was made using the GIS mineral resources assessment system.The assessment indicates that the national total potential resources of endogemic gold ore are 15521.8 tons.