On the basis of the field observations and laboratory works in recent years, the author has an attempt to discuss the relationship between the ma- terial source of uraniferous granitic rocks and uranium-mineralization. The mesozoic uraniferous granites in the southeast of China are formed by partial remelting and palingenesis of continental crust type sediments, volcano-sedi- merits and small numbers of original granite under the condition of increasing temperature and pressure in the tectonic acts. In this paper the author explained chiefly the characteristics of material source of uraniferous granitic rocks from the following ten respects; 1)the asso- ciation of granitic rocks; 2) the petrochemical composition of granitic rocks; 3) the composition of biotites; 4) Th/U ratio; 5) the accessory minerals; 6) the trace elements; 7) volatile compositions; 8) the distribution patterns of the rare earth elements; 9) the composition of stable isotops and 10) the temperature for formation of granites.