In this paper, six fungicides were selected and formulated as a seed coating agent to test for the prevention and control of corn head smut. The results showed that 10% Triticonazole did not adversely affect the emergence and growth of corn. The control effect of corn head smut at the ratio of 1∶50 coating was the best, up to 90.92%. It can be used as a new seed coating active ingredient in preventing and controlling corn smut.