To identify pathogens of maize ear rot in Qiqihaer city, samples were collected from maize fields in Qiqihaer City in December, 2013. These pathogens were isolated and identified, and their pathogenicity tested. The results showed that colony morphology and conidial morphology of the isolated pathogen Q-1 was similar with Fusarium graminearum, but it did not secrete pigment. The ITS sequence max similarity was 100% with Fusarium graminearum（Genebank No: HQ671191.1）. The phylogenetic tree showed that the Q-1 was in the same cluster as F. graminearum. The pathogenicity test of Q-1 indicated that Q-1 was verified to maize ear according to Koch’s Pos-tulot. So the Q-1 was named as Fusarium graminearum Qiqihaer.