The invention relates to an insecticidal composition, which is composed of an active component A and an active component B, wherein the active component A is boric acid, the active component B is oneselected from fenoxycarb, S-methoprene, indoxacarb, metaflumizone, clothianidin, acetamiprid, spinosad and bacillus thuringiensis, when the active component B is selected from fenoxycarb, S-methoprene, clothianidin, acetamiprid and bacillus thuringiensis, the weight ratio of the active component A to the active component B is 40:1-1:40, and when the active component B is selected from indoxacarb,metaflumizone and spinosad, the weight ratio of A to B is (40: 1)-(1:20). According to the invention, the composition is dominated by an inorganic salt boric acid, the lethal rate is not high, solenopsis invicta is not prone to producing food refusal, it is ensured that queen ant and breeding ants eat the lethal dosage, the prevention and control rate is increased, and after boric acid and the specific active component B are compounded, the synergistic effect is achieved, and the production practicability is achieved.