Maize is one of the most important crops in China. Pythium stalk rot and Fusarium ear rot are serious diseases in maize production. A total of 1647 maize accessions were screened for resistance to these two diseases from 2006 to 2012. Five hundred and sixty-four and 27germplasm was highly resistant to Pythium stalk rot and Fusarium ear rot, accounting for 32.24﹪and 1.64﹪ of total accessions screened, respectively. In addition, 209 and 352 accessions with resistance to Pythium stalk rot and Fusarium ear rot were discovered, accounting for 12.69﹪ and 21.37﹪ of total accessions, respectively. Among resistant germplasm, there were 13 accessions with high resistance to two diseases and 207 accessions with resistance to two diseases or resistance to one and high resistance to another. In present study, 56.5﹪and 23.6﹪ of maize inbred lines were highly resistant or resistant to Pythium stalk rot and Fusarium ear rot, whereas 21.2﹪and 21.4﹪of germplasm in landraces were resistant to these two diseases, respectively, indicating higher level of resistance and more multiple resistance in inbred lines than in landraces. Among 227 corn varieties participating in national regional test in 2009－2012, 11.5﹪, 11.9﹪, 40.1﹪, 17.6﹪ and 18.9﹪ of varieties were highly resistant, resistant, moderately resistant, susceptible and highly susceptible to Pythium stalk rot, respectively. The total of ratio of new varieties with moderate resistance, resistance and high resistance obviously tended to ascend during 2009－2011, but descended in 2012－2013.