There is provided a fluorine-containing organosulfur compound having an excellent control effect on harmful arthropods, which is represented by the formula (I): wherein m represents 0 or 1； n represents 0, 1 or 2； A represents an optionally substituted 6-membered aromatic heterocyclic group； R1 to R4 are the same or different and represent a hydrogen atom, a C1-C4 chain hydrocarbon group optionally substituted with a halogen atom, etc.； and Q represents a C1-C5 haloalkyl group containing at least one fluorine atom, or a fluorine atom.
