A HERBICIDAL COMPOSITION WHICH COMPRISES 1-(2-CHLOROIMIDAZO[1,2-A] PYRIDIN-3-YLSULFONYL)-3-(4,6-DIMETHOXYPYRIMIDIN-2-YL)UREA (IMAZOSULFURON) AND A COMPOUND REPRESENTED BY THE FORMULA (I): (COMPOUND [I]) AS ACTIVE INGREDIENTS, WHEREIN THE WEIGHT RATIO OF IMAZOSULFURON : COMPOUND [I] IS 1:0.1 - 1:10, HAS AN EXCELLENT HERBICIDAL ACTIVITY FOR CONTROLLING WEEDS IN CROP FIELDS OR PADDY FIELDS, AND CAUSES NO PHYTOTOXICITY AGAINST USEFUL PLANTS.