Ten local varieties collected from thethree gorges area and four exotic populations of maize (Zea mags L.) were assayed for allozyme variation at 16 enzyme marker locus. Extensive allozyme variability was observed in all populations studied, 1.69 and 1.75 alleles per locus werepresented within per local variety and exotic population respectively. Got2-6 was presented within ten tocal varieties hut was not discovered in exotic populations Est8-4.5、Mdh2-5.5 and Sod1-B were observed in four exdtic population...