This harmful arthropod control composition, which contains the compound represented by formula (I) (in the formula, each symbol represents the definition described in the description) and at least one blast disease control compound selected from group (A), has a superior control effect against harmful arthropods. Group (A) is a group comprising: isotianil, probenazole, tiadinil, tricyclazole, orysastrobin, and pyroquilon.
