Imidacloprid is a neonicotinoid compound high pesticide, with the features ofbroad-spectrum, high efficiency, low toxicity, low residue. It is hard to produce resistance for pests,but safe to people, animals, plants and invincible. Also it has toxicity, stomach toxicity and the absorption and other multiple roles. After pets exposure to agents, central nervous system normal conduction delay to paralysis death. Product quick result is good, 1 day after the drug will have a higher control effect that the residual period of up to 25 days. Efficacy and positive temperature dependence, the higher temperature, insecticidal better. its major role is in the prevention and control pests sucking mouthparts.