THERE IS PROVIDED AN ORGANIC SULFUR COMPOUND HAVING AN EXCELLENT CONTROLLING EFFECT ON HARMFUL ARTHROPODS REPRESENTED BY THE FORMULA (I): WHEREIN, R1 REPRESENTS A CL-C5 HALOALKYL GROUP HAVING AT LEAST ONE FLUORINE ATOM, R2 REPRESENTS A CL-C4 ALKYL GROUP OPTIONALLY SUBSTITUTED WITH AT LEAST ONE HALOGEN ATOM OR THE LIKE, R3 REPRESENTS A HYDROGEN ATOM OR THE LIKE, R4 REPRESENTS A CYANO GROUP OR THE LIKE, R5 REPRESENTS A HYDROGEN ATOM OR THE LIKE, M REPRESENTS AN INTEGER OF 1 TO 4, AND N REPRESENTS 0, 1 OR 2.