There is provided a process for producing an amide compound having an excellent harmful arthropod-controlling activity and represented by the formula (III): wherein R
1
, R
2
and R
3
independently represent a C
1
-C
6
alkyl group optionally substituted with at least one halogen atom etc., R
4
, R
5
, R
6
and R
7
independently represent a halogen atom etc.