The invention discloses a compound insecticide used for paddies. The compound insecticide is prepared from the following ingredient raw materials: 18-50 parts of thiediazole copper, 8-12 parts of agritol, 6-10 parts of chlorantraniliprole, 4-6 parts of metconazole, 3-5 parts of dimethyl pyrimide and 2-4 parts of clothianidin. According to the compound insecticide, the thiediazole copper, the agritol, the chlorantraniliprole and the like are taken as basic ingredients and are compounded with the metconazole, the dimethyl pyrimide and the like. After compounding, the compound insecticide has thefunctions of killing insects, resisting bacteria, inhibiting bacteria and the like. The compound insecticide has a killing function on insect pests, which cause rice bacterial streak and bacterial blight, such as rice leaf folder, pink rice borers, chilo suppressalis, tryporyza incertulas, lissorhoptrus oryzophilus, lissorhoptrus oryzophilus kuschel. The compound insecticide has the advantages ofhigh pertinence and small use dosage, is almost harmless to crops and the like, is safe to use and slightly affects the ecological environment.