The invention discloses a nicosulfuron-containing herbicidal composition and application thereof. The herbicidal composition is prepared from the following components: nicosulfuron, amicarbazone, and dimethyltetrachloroisooctyl ester as well as a dispersant, an emulsifier, a
wetting agent, a
thickening agent, an
antifreeze, and a dispersion medium, wherein the
dosage form belongs to a dispersed oil suspension agent. Through the combination of the three active ingredients, the herbicidal composition has an obvious synergistic effect, the use amount of pesticides is reduced, the cost and environmental
pollution are reduced, the
drug resistance of
corn field weeds can be delayed by the application of the composition, and the control spectrum is expanded.