Two hundred and eighty-five maize germplasm were identified and evaluated for resistance to sheath blight caused by Rhizoctonia solani. No immune germplasm was found. The percentage of highly resistant, resistant and moderately resistant germplasm were 1.0%, 3.2%, 13.7%, respectively. Most of the tested germplasm were susceptible. The percentage of susceptible and highly susceptible germplasm were 29.8%, 52.3 %, respectively. Plant height, ear height, the ratio of ear height and plant height were negatively correlated with the disease index. The lesion height, the ratio of lesion height, plant height and ear height were positively correlated with the disease index. The ratio of lesion height and ear height could be used to evaluate the resistance of maize to corn sheath blight.