This invention provides a insecticidal composition comprising one or more compounds selected from the compounds or salts thereof represented by the following formulaand neonicotinoid compounds represented by the following formula.The insecticidal composition of this invention shows a higher insecticidal effect, when compared with that each compound is used alone. In other words, the insecticidal composition of this invention shows a synergistic effect, and therefore the insecticidal composition can be applied in reduced amount and less frequency.