To provide a herbicidal composition having a wide herbicidal spectrum, being highly active and having a long lasting effect. A herbicidal composition comprising (a) a compound of the formula (I) or its salt: wherein R is hydrogen atom or -COCH2OCH3 and (B): at least one compound selected from the group consisting of the following compounds, as active ingredients: at least one sulfonylurea compound selected from (B1.1) bensulfuron-methyl, (B1.2) azimsulfuron, etc. (B2.1) pyriminobac-methyl an acetamide compound such as (B3.1) pretilachlor, etc. at least one benzoyl compound selected from (B4.1) benzobicyclon, (B4.2) mesotrione, etc. (B5.1) simetryn and so on.
