[Aim] Rice bacterial blight is a serious disease of this major staple crop. Landraces often contain resistence genes useful for breeding, so testing such cultivarscan provide a basis for the prevention and control of rice diseases.[Method] Resistance to 7 different pathogenic Xanthomonas oryzae pv. oryzae strains of 30 local rice cultivars from Yunnan Province was tested by leaf inoculation.[Result] Among the 30 tested rice cultivars, two showed resistance to all 7 pathogenic strains, while 15 cultivars were susceptible to all pathogenic strains tested. The measured levels of resistance to the 7 different pathogenic strains ranged from 6.67% to 26.67%. In addition, the resistance ratio of regional trial materials was higher than that of the main cultivars. No resistance was found in the local rice.[Conclusion] Most of the cultivars in production have reduced or lost ability to withstand the dominant pathogenic bacteria. Cv.s Yujing 16 and Nuodao JS42 were the resistant cultivars against the dominant pathogenic race FUJ in Yunnan Province.