The invention relates to a pesticide composition, in particular to an insecticide composition. The composition comprises chlorantraniliprole with synergistic effective dose, abamectin or emamectin benzoate, and one of cyhalothrin, dursban, diazinon, acetamiprid, cypermethrin, alpha cypermethrin, thiamethoxam, thiacloprid, fenvalerate, propargite, diafenthiuron, benfuracarb, azocyclotin, buprofezin, ethofenprox, phonamiphos, fipronil, flufenoxuron, monosultap, dimehypo, imidacloprid, flufenoxuron, chlorfluazuron, pleocidin and tebufenozide, wherein the mass percentage of the three compositions is that: the chlorantraniliprole is 1 to 35 percent, the abamectin or the emamectin benzoate is 1 to 10 percent, and any one of the insecticides is 1 to 50 percent. The invention discloses a process for processing the compositions and application of the compositions in preparing insecticides for controlling agricultural, forestry and gardening insect pests.