Synergistic herbicidal composition

The present invention belongs to the technical field of synergistic pesticides, and particularly relates to a synergistic herbicidal composition comprising a 4-benzoylpyrazole compound. The synergistic herbicidal composition comprises an active ingredient A and an active ingredient B in an herbicidally effective amount, wherein, the active ingredient A is the compound of the active ingredient B is one or more compounds selected from: 1) a phenoxycarboxylic acid; 2) a pyridinecarboxylic acid; 3) a benzoic acid; 4) a hydroxybenzonitrile; 5) an urea; 6) a pyridine; 7) a triazolinone; 8) a diphenyl ether; 9) an acetamide; 10) an aryloxyphenoxypropionate; 11) a cyclohexanedione; 12) a sulfonylurea; 13) a triazine; 14) a sulfonamide; 15) a phenylpyrazoline; and 16) others: bentazon. The composition is effective for controlling a broad-leaved weed in wheat fields, has extended weed-controlling spectrum, significant synergistic effect and reduced application rate, and is safe for a crop.