The invention provides an insecticide spray with a quantitative spraying function. Active ingredients of the insecticide spray contain an original medicine component A, a solvent component B and a propellant component C, wherein the weight percentage of the original medicine component A is greater than or equal to 0.05 percent and less than 0.5 percent; the weight percentage of the solvent component B is 0-70.0 percent, the weight percentage of the propellant component C is 29.45-99.45 percent, the original medicine component A is a pyrethroid compound, and is one or a mixture of more than two of metofluthrin, dimefluthrin, tetramethylfluthrin, d-trans propargyl chloride dimethrin, efficient cyfluthrin, deltamethrin, cyphenothrin, d-cyphenothrin and d-d-cyphenothrin. The insecticide spray with the quantitative spraying function uses a quantitative nozzle device with spraying amount of 0.05ml-1ml each time. The insecticide spray with the quantitative spraying function, disclosed by the invention, is capable of achieving the purpose of effectively assisting in distributing an original medicine relatively uniformly in spaces of different sizes, and is relatively beneficial to the environment and the health of a human body.