Zircons from Mesozoic granites of this area are rich in ΣREE, Mo,‘ poor in Zr/Hf, and deficient in Zr. With the evolution of magma and the develop- ment of the rock body from early intrusive stage to late stage, the zircons show obvious regularity of gradual increase in Hf, ΣREE, U and decrease in Zr/Hf. Zircons of different generations have remarkably different contents of trace elements, with those of late generations being richer in metallogenic ele- ment (Mo)，rare earth elements and radioactive elements. The study of trace elements in zircons may provide information for ore potentiality of. intrusive bodies. The relative increase in Hf, ΣREE, Th, U might be regarded as an important indicator for potential Mo mineralization of the rock}body. Such mineralogical-geochemical information as Zr/Hf=24.1 and Th/U=5.2 for zircons from Mesozoic granites lays the foundation for the gene- tic classification of granites in the area and the determination of genetic ty- pes for syntectic granites.