To provide a noxious arthropod controlling composition having excellent controlling efficacy to a noxious arthropod.

This noxious arthropod controlling composition containing flonicamid; one or more kinds of Delphacidae controlling compounds selected from group (A); and one or more kinds of rice blast controlling compounds selected from group (B), has excellent controlling efficacy to the noxious arthropod. Group (A): a group comprising clothianidin, imidacloprid, dinotefuran, thiamethoxam, fipronil and pymetrozine. Group (B): a group comprising isotianil, probenazole, tiadinil, tricyclazole, pyroquilone, thiophanate methyl, orysastrobin and azoxystrobin.