The invention discloses a herbicidal composition containing triafamone and benzobicylon. The herbicidal composition comprises a component A and a component B, wherein the component A is a mixture which comprises triafamone and benzobicylon; the component B is selected from one, two or more than two of a variety of recorded compounds, comprising bensulfuron methyl, pyrazosulfuron ethyl, cyclosulfamuron, ethoxysulfuron, cyclosulfamuron, cyhalofop-butyl, pyriminobac-methyl, 2,4-D,2-methyl-4chlorophenoxyacetic acid, propanamide, nitrofen, chlornitrofen, diuron, monuron, simazine, atrazine and prometryn. The herbicidal composition disclosed by the invention has an excellent herbicidal effect, and can effectively prevent and remove gramineous weeds, cyperaceous weeds and broadleaf weeds in paddy fields by applying pesticides once, and is further wide in weeding range and safe to rice for being a triafamone and benzobicylon compounded preparation.