Abstract: An insecticidal and miticidal composition is provided which comprises at least one fatty acid ester selected from the group consisting of glycerin monooleate, glycerin monolinolate, glycerin monocaprylate, glycerin mono/dioleate, glycerin di/trioleate, glycerin mono/dilinolate, glycerin mono/diricinoleate, glycerin diacetomonolaurate, sorbitan laurate, sorbitan oleate, diglycerin laurate, diglycerin oleate, diglycerin monolaurate, diglycerin monooleate, tetraglycerin oleate, hexaglycerin laurate, decaglycerin laurate, propylene glycol monolaurate, and propylene glycol monooleate; and a nonionic surfactant. The insecticidal and miticidal composition does not have phytotoxicity but has satisfactory long lasting effects even if it is used in a lower concentration.