The present invention relates to an herbicide composition comprising, as active ingredients, a uracil compound represented by the following formula (I): ##STR00001## wherein Z represents halogen or cyano; A represents oxygen, sulfur or NH; R.sup.1 represents hydroxyl, C1-C7 alkoxy or others, and R.sup.2 represents hydrogen or methyl, and one or more imidazolinone compounds selected from the group consisting of 5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid and 2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-5-(methoxymethyl)nic- otinic acid; and a method for controlling weeds which comprises applying an effective amounts of said herbicide composition to weeds.According to the invention, particularly weeds in orchards, soybean fields and non-crop lands can be effectively controlled.